In addition to collaborating with Eminem and Keri Hilson for his forthcoming album “King Uncaged,” T.I. has enlisted the help of “Alejandro” singer Lady Gaga ! While he has not revealed just what song they have recorded or the direction of it, T.I. is definitely a ‘monster’ (fan). “Phenomenal talent. Extremely proud [to work with her]. She’s definitely that good,” T.I. said of Gaga when discussing his album this week. “She knows what she’s doing. I think she’s an entertainer, in all aspects of the word.” As previously reported, T.I.’s forthcoming album, “King Uncaged,” is due in stores late summer 2010.