Pop Singer Katy Perry has told Opposition Leader Tony Abbott she wouldn't vote for him because of his stance on gay marriage.
"I love you as a human being but I can't give you my vote," Perry told Mr Abbott on Sydney's 2DayFM, after being informed he opposed same-sex marriage.
Katy Perry hammers Abbott on gay marriage
Pop star Katy Perry challenges opposition leader Tony Abbott over gay marriage on The Kyle and Jackie O Show.
Mr Abbott was one of a number of Aussie "celebrities" given the chance to ask the US pop star a question on Thursday.
He said his "big question" was when would the 28-year-old singer again tour Australia.
"When are you coming back [to Australia]? We need you, we want you," Mr Abbott enthused.
Perry, who rose to fame with her hit I Kissed a Girl, was keener to discuss coalition policy than her music.
"Oh come on, that's not a political question, let's talk about gay marriage," she retorted.
"Now you're interviewing me, Katy," a surprised Mr Abbott replied.
Perry urged voters to speak out against Mr Abbott's stance on gay marriage.
"I said 'hey, I like you as a human being I just don't believe in your policies so that's what a lot of people should be doing'," she told radio host Jackie O, after the chat with Mr Abbott.
"I'm sure he's still a fan, Katy, even though you gave it to him," Jackie O reassured her.
The coalition supports the standard definition of marriage as between a man and a woman, and opposes changing the Marriage Act.
Labor says it would allow MPs a conscience vote on the issue if it wins the election on September 7.