Justin Bieber Taps Lil Wayne For New Album

First it was Ludacris on "Baby." Then Kanye West remixed his "My World 2.0" track "Runaway Love" with Raekwon. Then, just when we thought he wasn't going to ask Busta Rhymes to be on his version of "Little Drummer Boy," he did just that. Now, pop superstar and "Otis" freestyler Justin Bieber is turning his collaborative efforts toward another star rapper: Lil Wayne.

Bieber, who is working hard on a forthcoming full-length titled "Believe," posted on Twitter on Wednesday (Feb. 1) that he had shared some studio time with the Cash Money superstar: "Good time in the studio last night. back at it tonight. oh yeah...and big bro came thru and when i say big bro i mean @LilTunechi. #BELIEVE IT." He also posted a pair of photos of Wayne and himself kicking it at a skate park -- the black-and-white shots either depict Mr. Carter giving the Biebs some fatherly music advice, or teaching the youngster how to do a kickflip.

Last month, Bieber announced on Twitter that he had started recording "Believe," which follows "Under The Mistletoe," a full-length Christmas effort that gave the teen star his third No. 1 album on the Billboard 200 last November. Over the past week, Bieber has also worked with songwriter Sean Garrett ( Usher, Chris Brown) as well as Timbaland, who helped craft a classic album from another teen pop titan: Justin Timberlake's "FutureSex/Lovesounds," in 2006.

Meanwhile, Lil Wayne just pushed out a music video for his "Carter IV" single "Mirror" on Tuesday, and is polishing his next full-length, "I Am Not a Human Being 2," for an expected summer release. The wise, world-weary Wayne is also serving as a mentor to another teen artist, Young Money rapper Lil Twist, who is prepping his own debut album, "Don't Get It Twisted."