During the 2000s, Dre focused on producing other artists, occasionally contributing vocals. He signed Eminem in 1998 and 50 Cent in 2002, and co-produced their albums. He has produced albums for and overseen the careers of many other rappers, including 2Pac, the D.O.C., Snoop Dogg, Xzibit, Knoc-turn'al, the Game, Kendrick Lamar, and Anderson Paak. Dre has also had acting roles in movies such as "Set It Off", "The Wash" and "Training Day". He has won six Grammy Awards, including Producer of the Year, Non-Classical. "Rolling Stone" ranked him number 56 on the list of 100 Greatest Artists of All Time. He was the second-richest figure in hip hop as of 2018 with an estimated net worth of $800 million.