'I'm with her': Katy Perry takes over Hillary Clinton's Instagram and wears red, white and blue to perform on stage in Iowa
She extolled the virtues of California 'gurls' in the charts.
And Katy Perry cemented her status as the all-American girl as she once again donned a patriotic outfit to belt out her hits on stage in Iowa on Saturday.
The Firework singer displayed her hourglass figure in a white gown fixed with a flowing star-spangled banner cape, to host a concert for Hillary Clinton at a Democratic Party fundraiser.
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Selfies: Katy Perry took over Hillary's Instagram account on Saturday sharing images from behind the scenes of the Iowa rally
And to make sure she literally wore the red, white and blue crown - she even added co-ordinated headgear.
The star took over Hillary's Instagram account for the day, sharing images from behind the scenes of the rally, after the Presidential hopeful adopted her hit Roar as a campaign anthem.
'You're gonna hear us roar, 2016 and beyond!' the singer shouted during the rendition of Clinton's campaign song.
See the latest on Katy Perry and her support for Hillary Clinton
Performing: 'You're gonna hear us roar, 2016 and beyond!' the singer shouted during the evening's rendition of Clinton's campaign song
During her own remarks Clinton said, 'Sometimes it's important, you just have to roar about what you need to fight for.'
Katy shared a selfie with the 67-year-old former U.S. Secretary of State, which was captioned by the singer: '#ImWithHer -Katy.'
The brunette beauty emphasised her striking blue eyes with cartoonish amounts of lash and added a glam red lip.
Patriotic outfit: The Firework singer displayed her hourglass figure in a white gown fixed with a flowing star-spangled banner cape
Every detail: The singer belted out her hits on a flag embellished microphone, ahead of the Jefferson-Jackson dinner in Des Moines
With her: She hosted a concert for Hillary Clinton at a Democratic Party fundraiser
Girl power: Katy cemented her status as the all-American girl as she once again donned a patriotic garb to belt out her hits alongside Hillary
Power couple: Referring to Katy's hit song during her own remarks Hillary said, 'Sometimes it's important, you just have to roar about what you need to fight for'
Earlier she revealed she had gone so far as to have her manicure themed to support Hillary's campaign.
The singer posted a snap of her nails to Hillary's account, which she captioned: 'Katy Perry here, taking over Hills' IG today for the rally in Iowa. The stage is set, and the nails are pressed. T-minus 1.5 hours before we Roar together. #ImWithHer -Katy'
Bill Clinton was also on hand to support his wife, making his first formal stop on the campaign trail Saturday evening and spoke before Perry's performance.
Nailed it: Earlier Katy revealed she had gone so far as to have her manicure themed to support Hillary's campaign
Lean on me: She captioned this snap: 'Supporting a supporter, Noah from Iowa. #volunteer #getinvolved -Katy'
Opening act: Bill Clinton joked on stage: 'I've never been the warm-up act for Katy Perry before, but I am well aware that I am the warm up act'
'I've never been the warm-up act for Katy Perry before,' 'he said. 'But I am well aware that I am the warm up act.'
After the concert, Katy stayed to support Hillary at the Democrat fundraiser Jefferson-Jackson Dinner.
She also shared an image of the gift she had bought the Presidential hopeful.
Supporter: She changed into a different outfit for the evening event, but kept to the patriotist colour scheme as she was seen with her hand on her heart during the National Anthem
Team Hillary: After the concert, Katy stayed to support Hillary at the Democrat fundraiser Jefferson-Jackson Dinner
Spelling it out: Clearly not suspicious, Katy posted a picture of a necklace which read POTUS which she captioned: 'My birthday gift to fellow Scorpio, Hillary, says it all. ♏️ -Katy'
Clearly not suspicious, Katy posted a picture of a necklace which read POTUS which she captioned: 'My birthday gift to fellow Scorpio, Hillary, says it all. ♏️ -Katy.'
She changed into a different outfit, but kept the red, white and blue theme as she was seen with her hand on her heart during the National Anthem.
It's not the first time that Katy has shown her love for her homeland through her outfits.
When she performed at a military concert in Washington D.C in 2013, the Last Friday Night singer donned an Esther Wiliams inspired stars and stripes bodysuit, which was markedly more revealing than the gown she chose for the political rally.
All American girl: When she performed at a military concert in Washington D.C in 2013, the Last Friday Night singer donned an Esther Wiliams inspired stars and stripes bodysuit
She also chose a diamante embellished mini-dress in a stars and stripes fabric in NYC in 2012, when she performed for Pepsi's Fleet Week.
The sexy thigh-skimming outfit featured a sleeve which opened out to look like the full flag.
Also at the VH-1 Divas Salute the Troops concert in December 2010, Katy showed off her fabulous figure in a plunging halterneck flag themed bodysuit.
Flagged up: She also chose a diamante embellished mini-dress in a stars and stripes fabric in NYC in May 2012, when she performed for Pepsi's Fleet Week
Starry nights: Also at the VH-1 Divas Salute the Troops concert in December 2010, Katy showed off her fabulous figure in a plunging halterneck flag themed bodysuit
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