|"You Ain't Seen Nothing Yet"|
It was released as a single in 1974 with an instrumental track "Free Wheelin'" as the B-side. It reached the #1 position on the Billboard Hot 100 singles chart and the Canadian RPM chart the week of November 9, 1974 and also reached #2 on the UK Singles Chart. The single won the Juno Award for best-selling single of 1974.
"You Ain't Seen Nothing Yet" debuted at #65 on September 21, 1974 and shot to the top of the Hot 100 seven weeks later. It was the only US #1 single in BTO's history. (While in The Guess Who, Randy had penned only one other chart-topper, "American Woman," which hit #1 in 1970). The song also holds the record for falling farthest on the chart before returning to the Top 10. After falling to #34 two weeks after being in the #1 spot, it jumped back to #8 for two weeks, largely because of interest in the flip side, an instrumental called "Free Wheelin'". On the UK version of the single, the label credits the band as "Bachmann–Turner Overdrive". It was kept off the top in the UK charts by "Lonely This Christmas" by Mud.
"You Ain't Seen Nothing Yet" was written by Randy Bachman. In The Rolling Stone Record Guide, writer Dave Marsh called the song "a direct steal from The Who," but "an imaginative one." The chords of the chorus riff are very similar to the ones used by The Who in their song "Baba O'Riley," and also, the stuttering vocal is indeed reminiscent of "My Generation." Randy insists that the song was performed as a joke for his brother, Gary, who had a stutter, with no intention of sounding like "My Generation." They only intended to record it once with the stutter and send the only recording to Gary.
Randy developed the song while recording BTO's third album, Not Fragile. It began as an instrumental piece inspired by the rhythm guitar of Dave Mason. Randy says "it was basically just an instrumental and I was fooling around... I wrote the lyrics, out of the blue, and stuttered them through." The band typically used the song as a "work track" in the studio to get the amplifiers and microphones set properly.