AceShowbiz -

Music giants Taylor Swift and will.i.am took the stage to perform some of their most loved hits of the year at 102.7 KIIS FM's Jingle Ball held at L.A.'s Nokia Theatre on Saturday, December 1. The two artists joined a long list of top performers such as Ne-Yo, Jonas Brothers, OneRepublic, and Ellie Goulding.

will.i.am came out as a big surprise for radio listeners as he replaced previously confirmed guest performer Maroon 5 that night. Earlier announcements from the station informed fans of a surprise guest which turned out to be the superstar rock band. However, on the night of the radio concert, frontman Adam Levine was stricken by a bad case of strep throat and could not make it to the show.

The Black Eyed Peas member performed some of his group's big hits including "Dirty Bit" and "Boom Boom Pow". He then gave great remixed renditions of Usher's "OMG" and his own single "This Is Love". This was followed by his latest colaboration with pop diva Britney Spears titled "Scream and Shout". "I want to see if you got energy," will told the live audience as the song kicked in. "Who got the energy? I'm gonna play this last song before I pass out. This song is featuring the queen Britney Spears."

Meanwhile, Swift, who headlined the radio concert event, closed the night's show with live renditions of her hit singles from the album "Red" including "I Knew You Were Trouble" and "State of Grace". "This is my second time playing the KIIS Jingle Ball... And this is the best one so far definitely. I have to be thankful for this holiday season thanks to you guys. I put out an album called Red and you've made that a very goodexperience," Swift said before ending her performance with the track "We Are Never Ever Getting Back Together".

The second night of KIIS' Jingle Ball will take place on Monday evening again at the Nokia Theatre and will feature guests such as PSY, Fun., The Wanted, Flo Rida, and Justin Bieber.