Train Kept A Rollin'

Rock Quiz: Train Kept A Rollin’ [December 4]
Q) ‘Train Kept A Rollin’ was written in 1951 as a blues song, before being re-done as a rock song in 1956 by Johnny Burnette. In 1968, it was the first song ever played by a rock group, who opened their ’68 and ’69 tours with the song. Which group?