Katy Perry has been pumping out some of our favourite pop songs over the last 10 years.
We've narrowed it down to 10 of our top Perry-pick! Could one of these end up in The Hits POP 100 Countdown? Text 4487 to vote now!
From 2010 when she hit us with stunners like Firework, California Gurls and Teenage Dream, right through to her 2020 hit Smile.