Possible Clues:

• Lil' Kim or Big Pun
• Lil' Kim, Lil Wayne or Lil Jon
• Kanye West, for one
• Hip-hop performer
• will.i.am, for one
• Popular performer in opera part is terrible
• Jay-Z, for one
• Hit maker?
• Supposed "singer" in order, a part is tuneless!
• Separate lives led by king and consort ultimately becoming performer