"A long-anticipated Nirvana song that's been the subject of much speculation and litigation finally surfaced on the nation's airwaves this week, more than eight years after singer Kurt Cobain killed himself.
Cobain's estate closely guarded "You Know You're Right," making it one of the most legendary unreleased tracks in rock history. The band, which launched the early 1990s "grunge" movement, recorded it in late January 1994, less than three months before Cobain's death.

"It may not be the best song they ever did, but it's probably in the top 10," Cobain biographer Charles Cross said Thursday. "