Flashback: Bob Dylan and Eric Clapton Sing 'Don't Think Twice, It's All Right'

For the past sixteen years, Eric Clapton has funded his Crossroads drug and alcohol rehabilitation clinic in Antigua with a series of all-star benefit concerts. The shows have mostly spotlighted guitar icons like Jeff Beck, Buddy Guy, Carlos Santana and Bo Diddley, but the inaugural show at Madison Square Garden in…