Possible Clues:

• Kurt of Nirvana
• Kurt __, lead singer of Nirvana
• Lead singer of Nirvana
• Posthumous Rock and Roll Hall of Fame inductee of 2014
• Musician on whom Gus Van Sant's 'Last Days' is based
• Kurt -- (1967-94), who formed the band Nirvana
• Rocker Kurt
• Kurt ---, Nirvana singer; bianco (anag.)