Katy Perry will be remembered for her many hit singles and not her tumultuous personal life so she wins.

Britney, duh!

Katy.

Max Martin's top 10 biggest Hot 100 hits
1. Katy Perry - Dark Horse
2. Maroon 5 - One More Night
3. Taylor Swift -Shake It Off
4. Katy Perry - ET
5. Katy Perry - California Gurls
6. Taio Cruz - Dynamite
7. Kelly Clarkson - Since U Been Gone
8. Backstreet Boys - Quit Playing Games (With My Heart)
9. Taylor Swift - Blank Space
10. The Weeknd - Can't Feel My Face

Britney, since she debuted a decade before Katy. Katy's music is more memorable than Brit's so she'll most likely win at the end.

true!

love this swift drag welcome to atrl

Britney.

Katy is one of the biggest pop stars ever so her (not trolling btw, Teenage Dream was absolutely huge and probably the biggest pop era of the '10s)

Britney obv.

Obviously Britney, she's a legend. Katy is a superstar, and in the same league as Rihanna or Taylor but not in the legend league.

Albums: Britney
Singles: Katy
Tours: ?
Movies: Katy

Britney

Britney of course.

There's not a single pop star to debut after 2000 with a bigger career than Ms Spears, it's not really fair.

Teenage Dream alone >

Toxic alone >

The indisputable Princess of Pop

Britney Spears ofcourse she became huge, felt the true bottom and is now rising as a phoenix!

Britney. It's not even close.

Britney Spears.

Katy is a big pop star, but she never had anything special. Yeah, she has a lot of hits, but didn't like TD only 6,5M with how many, 6 #1's? Britney is cultural phenomenon, she influenced so many artists and helped in re-defining pop music and culture. Many of her early hits are still remembered and referenced despite many limitations back in day. She is ultra successful, she is a household name, she has so many iconic and legendary moments. No way that even in the future Katy can pass Britney. Britney is the pop music and there is a reason why she is called the Princess of pop.

Britney, of course