Beyoncé made a new Pepsi commercial, but she already made her best commercial with them back in 2004.

Pretty much every pop song you love, from Britney Spears’ biggest hits to Katy Perry’s “Teenage Dream” was co-written by this Swedish genius.

Ke$ha: A Party-Ready Condor

You like their music, you’re their biggest fan, you want to put their face on your body forever, just make sure you find a good artist.

Blonde hair? Check. Exposed midriff? Check. Massive amounts of sass? Check, check, and check! (It’s for an upcoming Terrence Malick film.)

Skin-tight getups are a mainstay of pop fashion, from Britney and Beyoncé to Lady Gaga and…uh, Marilyn Manson.

‘The X Factor’s’ Britney Spears ‘would have loved’ judging ‘American Idol’

Oh, that was a long, long time ago.