Ringo is pretty goddamn sure it was himself. The other three lads liked to take a whack at the kit, particularly Paul, who played the drum part on “Back in the U.S.S.R.,” but Ringo ain’t backing down:

…[Paul’s] an incredible bass player, but he’s not a great drummer. George Harrison had his own way of playing drums, John Lennon had his own way of playing them, too. They’d hit them about a bit but they couldn’t really play.