Justin Bieber is a busy, busy boy. He is hard at work on his new album 'Believe' and you better "belieb" he is teaming up with some A-list talent to make his next record top notch.

The Biebs tweeted the news that he is working with powerhouse producer Timbaland, posting: "still a little tired. back in the studio today with @Timbaland working on #BELIEVE . until then #powernap."

Bieber is also partnered up with Sean Garrett, who has worked with stars like Chris Brown, Beyonce and Gwen Stefani in the past. Garrett also collaborated with Nicki Minaj, writing and co-producing her song 'Massive Attack,' which actually does not appear on 'Pink Friday.'

Garrett espoused the talents of the Biebs not once, but twice. He first posted this tweet: "I knew @justinbieber was talented,but I never knew he was this talented! Wow."

The teen heartthrob has made a believer out of Garrett! Garrett also tweeted another note of praise about Bieber, writing: "@justinbieber working with him over the last few day were amazing! Huge things to come!"

The Biebs is the real deal. Belieb it.