The 'I Kissed A Girl' singer's marriage came to an end at the close of 2011 and was finalised in summer 2012.
Katy Perry Wishes Lady Gaga Happy Birthday On Twitter
The 'Part Of Me' singer tells the 'Born This Way' star to have a drink on her to celebrate turning 26.
Katy Perry sent Lady Gaga a personal message yesterday to celebrate the singer's birthday.
"Happy birthday lovely, have a whiskey for me :) @ladygaga," Katy tweeted yesterday.
The 'Teenage Dream' singer also responded to a Twitter interview Madonna conducted with her fans this week, where the 'Give Me All Your Lovin' star revealed he thoughts on Katy.
"She's hot. If she was my girl I'd never cheat on her," Madonna said of Katy Perry, in response to a fan question.
Katy later replied: "Well played my Queen. My move..."
Latest Katy Perry
The 'I Kissed A Girl' singer was said to be seen getting close with the Hollywood action star.
As Rita Ora stars opposite Snoop Dogg and David Beckham in a new animation, Capital looks at other pop stars who have been transformed into cartoons, including Katy Perry, Lady Gaga and Rihanna.
The 'Part Of Me' star is back with the final chapter from 'Teenage Dream'.