US TV
The rap star, who previously appeared in comedy movie The Longest Yard, will play a club owner who provides valuable information to Mac and his team.
"He's a great actor," said executive producer Pam Veasey. "He really stepped up."
Pop group Maroon 5 will also make a cameo in the new season, which airs in the US from September.
Tube Talk
'Freaks and Geeks': Tube Talk GoldTube Talk Gold heads back to the '80s and remembers Freaks and Geeks.
2012-13 Season
John Stamos to star in 'Little Brother'The former Full House actor will star in the comedy pilot Little Brother.
US TV Interviews
'Celebrity Apprentice' Debbie Gibson Q&ADebbie Gibson opens up about her Celebrity Apprentice experience.
US TV Ratings
'Blue Bloods', 'Grimm' rise on FridayCBS beats ABC to win Friday night's ratings battle, thanks to Blue Bloods.
