Jessie J brought the bling into the Jingle Bell Ball, as she closed the two-day pop extravaganza in a gold catsuit.
The Brit-winning star ended the gig on a high note as she performed a six-song set, which includes a surprise appearance from James Morrison for their duet Up, finishing with her hit Price Tag.
Calvin Harris, The Wanted, Pixie Lott, Jason Derulo and Labrinth also took to the stage on December 3, before Rihanna closed the show with six of her massive tracks including Umbrella, We Found Love and What's My Name.
Hip-hop newcomers Rizzle Kicks joined Olly Murs on stage at London's O2 Arena for their tune, Heart Skips A Beat.
One Direction, JLS, Ed Sheeran, Wretch 32, The Saturdays and Emeli Sande performed on December 4, with chart-topping boy band JLS kicking off the party vibe with Eyes Wide Shut.
Professor Green appeared on stage with Emili for a rendition of their hit single, Read All About It.
Ed Sheeran's set went down a storm with the crowd, but it was One Direction who got the loudest screams of the night.
Now in its fourth year, the sell-out event - which helps Capital's flagship charity, Help A Capital Child - was hosted by some of the station's DJs including 95.8 Capital FM's new weekday breakfast show host Dave Berry with Lisa Snowdon.