When was the song, which includes Young Jeezy, will.i.am, Justin Timberlake and Slash, released?
Rated R (Rihanna album):  The record featured several vocalists and instrumentalists, including Young Jeezy, will.i.am, Justin Timberlake and Slash, who played the guitars in "Rockstar 101". Rockstar 101:  It was released on May 18, 2010, as the fifth single from the album.
May 18, 2010