Possible Clues:

• "Illmatic" performer
• Rapper with the 2012 #1 album 'Life Is Good'
• 2012 rap Grammy nominee for 'Life Is Good'
• -- in 'nobody'
• "Illmatic" artist
• 'Industry Baby' rapper Lil ___ X
• Music's Lil ___ X
• "Illmatic" rap star
• He ripped Jay-Z with his rap 'Ether'
• 'Life's a Bitch' and 'Life Is Good' rapper