Perez Hilton — No worries! It was just Justin Bieber! The Biebs made a surprise appearance at the Black Eyed Peas concert at the Staples Center last night during Ludacris' opening act. Justin took to his Twitter after the gig to say: "Crazy night…got to surprise ... more info

MTV.com News — Monica's comeback bid, Still Standing, is just behind at #2.By Gil Kaufman Justin Bieber Photo: Mike Stobe/ Getty Images Once again, it's Justin Bieber's world. The teenage titan will top the Billboard 200 albums chart next week with My Wor... more info

MTV.com News — Pop singer jumped onstage as Luda opened for the Black Eyed Peas.By Jocelyn Vena Justin Bieber Photo: Getty Images Justin Bieber surprised fans at the Staples Center in Los Angeles on Tuesday night when he jumped onstage with Ludacris, who ... more info

VH1 News — Justin Bieber joins Ludacris on-stage at the rapper's show in Los Angeles. more info

Idolator — Far from the end of their E.N.D tour, the Black Eyed Peas keep cranking out the surprises. Last night, as the Peas played the first of two massive shows in Los Angeles, will.i.am kept things kosher, thanking the band's Jewish fans for showing up on P... more info

MTV.com News — Bieber visits the Bahamas with a lucky girl in the new clip.By Jocelyn Vena Justin Bieber in his video for "Never Let You Go" Photo: Island In Justin Bieber's last video, we saw him hanging with celebrity pals like Drake and Ludacris while ... more info

MTV.com News — 'This one is it: Raymond V. Raymond!' singer says.By Shaheem Reid Usher Photo: MTV News With more than 45 million albums sold, Usher has already established himself as one of the greats of contemporary music. But does the singer see himself... more info

VH1 News — Justin Bieber performed his hit "Baby" at the 23rd annual Nickelodeon Kids' Choice Awards, even filling in for an absent Ludacris by rapping the Atlanta MC's part of the song. more info

MTV.com News — Singer also fills in for an absent Ludacris by rapping the Atlanta MC's part.By Amy Wilkinson Justin Bieber performs at the Kids' Choice Awards on Saturday Photo: Kevin Winter/Getty Images Starry-eyed tweens and celebrities alike (we saw yo... more info

Starpulse — Ludacris is disappointed he failed to convince Lauryn Hill to collaborate on a new song after the reclusive singer/rapper turned down the hip-hop star's efforts to feature her on his new album.   ... more info