Bachman-Turner Overdrive are a Canadian rock group from Canada, that had a series of hit albums and singles in the 1970s, selling over 7 million albums in that decade alone. Their 1970s catalogue included five Top 40 albums and six Top 40 singles. The band has sold nearly 30 million albums worldwide, Many of their songs, including 'Let It Ride', 'You Ain't Seen Nothing Yet', 'Takin' Care of Business', 'Hey You' and 'Roll On Down the Highway' , still receive play on FM classic rock stations.Not Fragile is the bands third album and was released in 1974. The title is thought to be a response to Yes' Fragile. The style has been described as a cross between Mountain and early ZZ Top. The arrival of Blair Thornton (replacing Tim Bachman) gave the band a true second lead guitar to pair with Randy Bachman, and dual-guitar solos are prominent features. It proved to be the group's most popular album, and is the only BTO album to have reached #1 on the US Pop Album charts. 'Roll On Down The Highway' and 'You Ain't Seen Nothing Yet' were hit singles.