Rapper Nelly will appear as himself in an early 2011 episode of "90210".

The rapper will pop up when Navid and Dixon somehow get involved in the shoot for his 'She's So Fly' music video. [Movieline]

http://www.tvsquad.com/2010/12/02/paula-marshall-to-play-cuddys-sister-on-house-kara-dioguardi/