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Alison Maxwell, USA TODAY
It's no secret whom Katy Perry is voting for.

At a campaign rally for President Obama Saturday in Milwaukee, Perry sported a bright blue dress with Obama's slogan "Forward."

According to the Associated Press, Perry came on stage at Saturday's event wearing a red, white and blue dress and holding a microphone shaped like the Statue of Liberty's torch. But after her first song, a cover of Al Green's soul hit Let's Stay Together, she tossed aside the dress to reveal the bright blue minidress.

Obama's slogan "Forward" is also Wisconsin's state motto.

Perry's campaign-friendly wardrobe must run deep: Just last week she wore a white dress imprinted with a ballot. On her right hip, a square was marked Obama/Biden.

Obama's rally with Perry comes before he's set to be in Madison on Monday with Bruce Springsteen