POPSUGAR News 4/17/10 Taylor & Katy's Duet, Christina on Motherhood & Max, & Nude Music Stars Read More POPSUGAR NewsKaty PerryTaylor SwiftRicky MartinChristina AguileraBritney Spears Christina Aguilera Christina Aguilera Shares Precious Pictures of Her Baby Girl at Disneyland Christina Aguilera Spoofs Several Famous Pop Stars — but Does She Succeed? Christina Aguilera on Her Britney Spears Impression: "It Was All in Good Fun" Christina Aguilera Has Some Country Twang! Here's Her New Song From Nashville Katy Perry Here Are All the Possible Katy Perry Digs in Taylor Swift's "Bad Blood" Music Video POP 100: Which Hot Musician Is Your Favorite? The Cutest Girlfriend Moments From the Met Gala Madonna and Katy Perry Could Not Have Had More Fun at the Met Gala Britney Spears Something Spectacular Happened at Britney Spears's Last Vegas Show Christina Aguilera Spoofs Several Famous Pop Stars — but Does She Succeed? Watch Britney and Iggy's First-Ever Live Performance of "Pretty Girls" Britney Spears and Her Boyfriend Make Their Red Carpet Debut! Taylor Swift Here Are All the Possible Katy Perry Digs in Taylor Swift's "Bad Blood" Music Video Is Prince Royce the Newest Member of Taylor Swift's Crew? 14 Moments From the "Bad Blood" Video That Are Too Fierce to Handle Taylor Swift and Calvin Harris Already Have Some Supercute Couple Moments Get chic with our daily newsletter Celebrity Style Beauty Tips Street Style Fashion and Beauty News Sign up with By signing up, I agree to the Terms and to receive emails from POPSUGAR.