Big Sean’s new home Def Jam leaves nothing to chance in trying to keep this Kanye West protégé from getting Wale’d in the marketplace like so many mixtape-circuit graduates. His major-label debut proceeds efficiently, offering cloying Chris Brown choruses, canned guitar solos, and plodding beats that fail to highlight Sean’s nimble flow or provide shameless pop pleasure. Except for a few asides — like a shameful remembrance of stealing from his grandmother’s purse — Finally Famous remains stuck in a lyrical ouroboros, with Sean pointing out that he’s so hot that he had to getfamous, which is why he’s so hot, ad infinitum.