Taylor Swift's LA concerts sure were star-studded! During the segment when she usually covers a geographically appropriate song, Taylor had surprise guests perform with her onstage like Justin Bieber, Jason Mraz, Nicki Minaj, and Hot Chelle Rae. The celeb sightings didn’t stop there; Taylor hugged her famous guests backstage at Staples Center including her ex Taylor Lautner. Watch the videos below and tell us what you think!
Taylor sang "Baby" with the Biebs. She later tweeted, "You think you've heard LOUD screaming in your life.. Then @justinbieber comes out and does a surprise song during your show. Woah. Unreal."
T-Swift also sang "Super Bass" with Nicki Minaj. Afterwards, she tweeted, "The combination of the INSANE crowd tonight and @NICKIMINAJ joining me onstage for "Superbass" =#IwishthatIcouldhavethismoment4life"