Christina Aguilera, Eminem,Set For “Entourage” Season Finale Guest Appearance. Eminem and Christina Aguilera are set to appear on “Entourage.” The Grammy Award winners are among the guest stars set to appear in the HBO comedy’s 7th season finale. The rapper shot a scene at “a platinum record party for his album, which by the time this airs will be platinum, I’m sure,” show creator Doug Ellin told EW. He continued, “He has a little conflict – a little beef – with Vince [Adrian Grenier].” Eminem, who released his album “Recovery” last week, won’t perform in the episode, but Aguilera will, who has also released her album “Bionic” earlier this month. Both Eminem and Aguilera will play themselves. The “pretty dramatic season finale” will air on September 12. Other guest stars include Minka Kelly, John Cleese, and pro athletes Drew Brees, Ryan Howard, Jordan Farmar, and Kevin Love.