Ultimate collection of Eric Clapton's early years. The Early Days: Ultimate Collection brings together tracks legendary guitarist Eric Clapton recorded in the 1960s with the Yardbirds. Also included are a few cuts off his rare 1971 album Guitar Boogie, which featured Clapton jamming with fellow British blues-rock guitarists Jeff Beck and Jimmy Page. Included are such cuts as "Boom Boom," "Train Kept a Rollin'," "I Ain't Got You".