Katy Perry gives an eyeful of her VERY ample cleavage in sexy stars and stripes ensemble as she hits the stage to support Hillary Clinton

Katy Perry put her brand new relationship with Orlando Bloom aside on Wednesday night to focus on her political agenda.

The superstar singer hit the stage to support US Democratic presidential candidate Hillary Clinton at the Hillary Victory Fund 'I'm With Her' benefit concert at Radio City Music Hall in New York, showing off her passion and looking sensational while doing it.

The 31-year-old singer rocked a typically patriotic ensemble for her stint on the stage, flaunting her famously ample cleavage while wowing the crowd.

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Political passion! Katy Perry looked sensational as she hit the stage at the Hillary Victory Fund 'I'm With Her' benefit concert at Radio City Music Hall in New York on Wednesday

She channelled her inner Uncle Sam in a pair of shiny wide-legged blue and white striped trousers, teamed wtih a very uplifting red star-printed bra top.

Almost spilling out of the cropped bralet, she further enhanced her tiny waistline and generous chest with a funky waistcoat - in red and white, of course - cinching everything in.

As she danced around with a plethora of dancers in similar stars and stripes attire, she also flashed a hint of her enviably toned torso, showing she hadn't overindulged on her recent romantic trip to Hawaii with her new actor beau. 

See Katy Perry updates as she wears stars and stripes as she supports Hillary Clinton

Sexy stars and stripes: The 31-year-old flaunted her amazing figure in a pair of flattering wide-legged striped trousers and a tight waistcoat

Getting waisted! She drew attention to her whittled, shapely curves with a waist belt around her middle as she put on a typically energetic, passionate display

Her cup almost runneth over: The star - who is newly loved-up with Orlando Bloom - hoisted her ample cleavage up in a sparkling red star-printed bra top

Uncle Sam vibes: The patriotic star didn't let-up as she performed at Hillary Clinton's benefit

Her raven tresses were slicked back into a fierce, tight updo and her make-up was simple, a slick of black liner to show off her pretty eyes.

It was a powerful and emotional performance for Katy, who is a staunch Hillary supporter, and she did everything to whip the crowd into a frenzy. 

A regular face at political rallies and concerts, Katy looked utterly at home on the stage as she wowed the crowd at the event, which also had former president Bill Clinton and his and Hillary's daughter Chelsea in attendance. 

Thinking of someone? Katy's new man Orlando was in the audience at the packed-out event in Manhattan

Doing her bit: It was a powerful and emotional performance for Katy, who is a staunch supporter of Hillary - the US Democratic presidential candidate - and she did everything to whip the crowd into a frenzy

'She's the right person for the job': Addressing the crowd, the Firework hitmaker explained why she's backing the 68-year-old US Senator in the race to become the president

And she looked thrilled as Hillary herself then appeared on stage to take a bow with her at the concert, which also saw the likes of Elton John and Andra Day perform.

Addressing the crowd, the Firework hitmaker explained why she's backing the 68-year-old US Senator in the race to become the president.

'I'm not voting for her because she's a woman,' she said, in-between songs. 'I'm voting for her because she's the right person for the job.'

The singer - who performed at the event free of charge - also dedicated her song Unconditional to the political candidate, who won 7 out of 11 states on Tuesday.

Meaningful: The singer - who performed at the event free of charge - also dedicated her song Unconditional to the political candidate, who won 7 out of 11 states on Tuesday

Family affair: Also in attendence were Hillary's husband and former US president Bill Clinton, and their daughter Chelsea

'I sing this next song for her because I do believe this woman shows unconditional love,' the star said before going into the catchy hit. 

Meanwhile, as well as her focus on the political side of things, and her art, Katy was no doubt thinking of her new boyfriend Orlando, 39, who had gone along to be with her on the big night.

The newly-smitten pair had just returned from their first getaway together, and the British Lord Of The Rings star clearly couldn't bear to be apart from his stunning new lady.

The genetically-blessed duo looked smitten with one another as they spent the day hiking with pals at Nā Pali Coast State Park in Kauai last Saturday, before cosying up ahead of a dreamy dinner date the following day in Maui, Hawaii.

'Hillary Clinton is a badass!' Katy later emerged after the event in a funky ensemble, complete with stars and stripes-printed jeans and a t-shirt scrawled with her supportive message

Date night? Orlando, 39, was seen emerging from the concert venue, having stuck by her side following their romantic Hawaii trip

Recent break: The British actor looked tanned and refreshed from their romantic break in Maui

Snap! Katy gladly posed for selfies with fellow supporters of Hillary, although many were also no doubt fans of her own

Pictures from their vacation showed them getting very touchy-feeling and appearing intimate, showing off their new love and confirming the persistent rumours.

According to Entertainment Tonight, Katy and Orlando - who were first linked after they were spotted getting cosy at a Golden Globes afterparty in January - also took a helicopter ride during their lavish vacation. 

The I Kissed A Girl hitmaker - who boasts a $260M fortune - had reportedly played a private show February 24 at the Grand Wailea Resort on Maui.

It's the first known getaway for the flirty duo, who were first spotted canoodling at a Golden Globes afterparty at the Beverly Hilton on January 10.

And while the Roar hitmaker divorced British comedian Russell Brand in 2012, Orlando has a five-year-old son Flynn with his ex-wife, model Miranda Kerr. 

New love: Katy and Orlando were first romantically linked when they were pictured at the Golden Globes after party together in January