 Records by Chuck Berry, Muddy Waters, and others. Well, after the boys got reacquainted, they decided to go back to Keith's flat to listen to the records and found they both loved American rhythm and blues. They formed a group with Keith on guitar and Mick singing. That group became, you got it, the Rolling Stones. With 39 top 40 hits, including 22 top 10s and eight number ones, the Stones, at number seven, are the biggest group in our triathlon. Here's their 1984 smash, Undercover.