Name the Artist: Time Will Reveal?

Questions

Music - As what is Merle Haggard also known as?

Music - Besides the Stones, which group had the longest touring career until the founder's death in 1995?

Music - Bill Justis was a studio musician when he recorded this 'sloppy' instrumental in october 1957?

Music - Country singer Vince ?

Music - Crosby, Stills and Nash's debut album included a song about a girl and the colour of her eyes. Name that song.?