All the Celeb Cameos in Kanye West's "Jeen-Yuhs" Docuseries

In part one of "Jeen-Yuhs," rapper Mase is first seen at Jermaine Dupri's birthday party in 1998, among others (including rap group Harlem World and West himself). Mase gained popularity after signing with Bad Boy Records, the New York-based record label founded by Combs. West has called Mase his "favorite rapper ever," and the two collaborated on West's "Cruel Summer" album together.