Katy Perry wows in a fairytale gown as she takes to the stage at charity gala following split from boyfriend John Mayer

She's reportedly nursing a broken heart following yet another split from boyfriend John Mayer.

But Katy Perry showed little sign of heartbreak as she took to the stage at the 2015 Starkey Hearing Foundation So The World May Hear Gala on Sunday evening.

Performing at the St. Paul RiverCentre in Minnesota. Katy looked beautiful in a full-skirted ballgown as she entertained the crowd with some of her biggest hits, just two days after news of her split was revealed.

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Taking to the stage: Amid reports she has split from John Mayer for a fourth time, Katy Perry looked in good spirits as she performed at the  2015 Starkey Hearing Foundation So The World May Hear Gala on Sunday

Taking to the stage: Amid reports she has split from John Mayer for a fourth time, Katy Perry looked in good spirits as she performed at the  2015 Starkey Hearing Foundation So The World May Hear Gala on Sunday

Katy showed off her curves in a stunning tulle gown, which featured a shimmering rainbow colour scheme and a huge skirt.

The star kept her accessories to a minimum to allow the strapless number to take centre stage, adding a cocktail ring and matching flower earrings.

Her dark locks were swept back into an elegant up do, while gold eyeshadow and a metallic manicure finished off her stage ensemble.

Hitting all the right notes: The pop princess looked stunning in a full skirted ballgown as she performed her biggest hits 

Hitting all the right notes: The pop princess looked stunning in a full skirted ballgown as she performed her biggest hits 

Simply stunning: Katy showed off her curves in her strapless gown, paired with statement earrings and a cocktail ring

Simply stunning: Katy showed off her curves in her strapless gown, paired with statement earrings and a cocktail ring

Sing it: Katy's dark locks were swept back into an elegant up do as she sung her heart out for the star-studded crowd
Sing it: Katy's dark locks were swept back into an elegant up do as she sung her heart out for the star-studded crowd

Sing it: Katy's dark locks were swept back into an elegant up do as she sung her heart out for the star-studded crowd

Taking her mind of things: Katy threw her all into the performance despite her reported heartbreak

Taking her mind of things: Katy threw her all into the performance despite her reported heartbreak

The chart-topper was joined by a full band and backing singers as she entertained guests at the charity gala, belting out her hit songs.

A host of big names were in the audience to see the This Is How We Do singer perform, including former presidents George W. Bush and Bill Clinton.

Katy posed with the US politicians at the bash, posting a photo to her Instagram account which sees her in between Bush and Clinton in another stunning gown with gem-embellished straps.

What a performance: The chart-topper was joined by a full band and backing singers as she entertained guests at the charity gala

What a performance: The chart-topper was joined by a full band and backing singers as she entertained guests at the charity gala

Wowing the crowd: A host of big names were in the audience to see the This Is How We Do singer perform

Wowing the crowd: A host of big names were in the audience to see the This Is How We Do singer perform

Good cause: The hearing-aid company hosts an annual black-tie gala which raises millions to outfit children in Third World countries with free hearing aids

Good cause: The hearing-aid company hosts an annual black-tie gala which raises millions to outfit children in Third World countries with free hearing aids

Raising millions: In 2014, the gala raised nearly $9 million to support hearing health programs and charitable initiatives

Raising millions: In 2014, the gala raised nearly $9 million to support hearing health programs and charitable initiatives

The hearing-aid company hosts an annual black-tie gala which raises millions to outfit children in Third World countries with free hearing aids.

In 2014, the gala raised nearly $9 million to support hearing health programs and charitable initiatives.

While Katy was happy to pose with fellow VIP guests inside the event, the Star Tribune claim she refused to answer questions on the red carpet after arriving around 30 minutes after the other guests.

VIP guestlist: Katy shared a photo to her Instagram account showing her with fellow guests George W. Bush and Bill Clinton

VIP guestlist: Katy shared a photo to her Instagram account showing her with fellow guests George W. Bush and Bill Clinton

Her gala performance comes amid reports over the weekend that she has split from Mayer for a fourth time.

According to E! News, the 30-year-old pop diva and the 37-year-old bluesman mysteriously called it quits just three weeks after spending the July Fourth holiday together in Chicago.

The lovebirds - who rekindled their famously Hot and Cold romance in January - seemed very much together as they attended the Grateful Dead's farewell concert at Soldier Field. 

Over for good? Katy has reportedly split with her on/off boyfriend John Mayer, yet again, after rekindling their love in January (pictured last year)

Over for good? Katy has reportedly split with her on/off boyfriend John Mayer, yet again, after rekindling their love in January (pictured last year)

No further details are available at present.  

Katy and John - whose first date was reportedly back in 2009 - famously released a PDA-filled duet called Who You Love in 2013.

The seven-time Grammy winner has a womanising reputation having famously loved (and left) celebs like Taylor Swift, Jennifer Aniston, Jessica Simpson, Jennifer Love Hewitt, and Minka Kelly.  

Bonding over the Dead: The 30-year-old pop diva and the 37-year-old bluesman mysteriously called it quits just three weeks after spending the July Fourth holiday together in Chicago

Bonding over the Dead: The 30-year-old pop diva and the 37-year-old bluesman mysteriously called it quits just three weeks after spending the July Fourth holiday together in Chicago

Truckin' along fine: The crooning lovebirds seemed very much together as they attended the Grateful Dead's farewell concert at Soldier Field 

Truckin' along fine: The crooning lovebirds seemed very much together as they attended the Grateful Dead's farewell concert at Soldier Field 

Mayer - who has no album or tour scheduled - last performed a couple gigs in June with Phil Lesh and Friends at Terrapin Crossroads in San Rafael.

Meanwhile, the 13-time Grammy nominee makes a cameo in her ex-husband Russell Brand's new documentary A Second Coming - which screens August 6 at Melbourne Film Festival.

In it, Katy - born Katheryn Hudson - reportedly reveals her trepidation marrying Russell, because of how Buddha left his wife to search for enlightenment.  

Backstage at the Super Bowl: It's unclear whether Perry and Mayer broke things off over their seven-year age difference, clashing schedules, or some other unknown drama

Backstage at the Super Bowl: It's unclear whether Perry and Mayer broke things off over their seven-year age difference, clashing schedules, or some other unknown drama

Oh well: Katy and John - whose first date was reportedly back in 2009 - famously released a PDA-filled duet called Who You Love in 2013

Oh well: Katy and John - whose first date was reportedly back in 2009 - famously released a PDA-filled duet called Who You Love in 2013

Wandering eye? The seven-time Grammy winner has a womanising reputation having famously loved (and left) celebs like Taylor Swift, Jennifer Aniston, Jessica Simpson, Jennifer Love Hewitt, and Minka Kelly

Wandering eye? The seven-time Grammy winner has a womanising reputation having famously loved (and left) celebs like Taylor Swift, Jennifer Aniston, Jessica Simpson, Jennifer Love Hewitt, and Minka Kelly

On hiatus: Mayer - who has no album or tour scheduled - last performed a couple gigs in June with Phil Lesh and Friends at Terrapin Crossroads in San Rafael

On hiatus: Mayer - who has no album or tour scheduled - last performed a couple gigs in June with Phil Lesh and Friends at Terrapin Crossroads in San Rafael

The 40-year-old comedian famously blindsided the star with divorce papers in 2011.

Perry will have to wait until the Emmy Awards air September 20 on Fox to find out if she wins a trophy for her record-breaking Super Bowl XLIX performance.

The Roar hitmaker is enjoying some downtime before she takes her Prismatic World Tour to Peru's Jockey Club in Lima on September 22.  

Screening August 6 at Melbourne Film Festival! Meanwhile, the 13-time Grammy nominee makes a cameo in her ex-husband Russell Brand's new documentary A Second Coming

Screening August 6 at Melbourne Film Festival! Meanwhile, the 13-time Grammy nominee makes a cameo in her ex-husband Russell Brand's new documentary A Second Coming

Blindsided her with divorce: In it, Katy reportedly reveals her trepidation marrying Russell, because of how Buddha left his wife to search for enlightenment (pictured in 2011)

Blindsided her with divorce: In it, Katy reportedly reveals her trepidation marrying Russell, because of how Buddha left his wife to search for enlightenment (pictured in 2011)

'[I want] to live life and have life experiences that influence my music,' Katy told Forbes of her recent hiatus.

'I don't feel like my career is a ticking time bomb. I don't feel like I'll always have to be feeding the meter of show business. I got my spot, yo.'

114.4M tuned in! Perry will have to wait until the Emmy Awards air September 20 on Fox to find out if she wins a trophy for her record-breaking Super Bowl XLIX performance

114.4M tuned in! Perry will have to wait until the Emmy Awards air September 20 on Fox to find out if she wins a trophy for her record-breaking Super Bowl XLIX performance

'To have life experiences that influence my music': The Roar hitmaker is enjoying some downtime before she takes her Prismatic World Tour to Peru's Jockey Club in Lima on September 22 (pictured on May 1)

'To have life experiences that influence my music': The Roar hitmaker is enjoying some downtime before she takes her Prismatic World Tour to Peru's Jockey Club in Lima on September 22 (pictured on May 1)

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