Sept. 21 was a significant date for many rock legends, including Jimi Hendrix, Dire Straits, and Nirvana. Continue reading to discover their career milestones and other major events that occurred on this day in rock history. Jimi Hendrix released one of his most well-known songs, a cover of Bob Dylan's "All Along the Watchtower." It was a copy of Bruce Springsteen's Born in the U.S.A. album, and it started a revolution in how people stored and listened to their music. It was a copy of Bruce Springsteen's Born in the U.S.A. album, and it started a revolution in how people stored and listened to their music.