guitar, in their early days. The group started out covering early rock 'n' roll and blues songs, and have never stopped playing live or recording cover songs. Jagger and Richards had a shared admiration of Jimmy Reed, Muddy Waters, and Howlin' Wolf. Little Walter influenced Brian Jones. Richards recalls, "He was more into T-Bone Walker and jazz blues stuff. We'd turn him onto Chuck Berry and say, 'Look, it's all the same shit, man, and you can do it. Charlie Watts, a traditional jazz drummer, was also introduced to the blues through his association with the pair, stating in 2003, "Keith and Brian turned me on to Jimmy Reed and people like that. I learned that Earl Phillips was playing on those records like a jazz drummer, playing swing, with a straight four." Jagger, recalling when he first heard the likes of Chuck Berry, Bo Diddley, Muddy Waters, Fats Domino, and other major American R&B artists, said it "seemed the most real thing" he had heard up to that point. Similarly, Keith Richards, describing the first time he listened to Muddy Waters, said it was the "most powerful music [he had] ever heard ... the most expressive". He also recalled, "when you think of some dopey, spotty seventeen year old from Dartford, who wants to be Muddy Waters—and there were a lot of us—in a way, very pathetic, but in another way, [it was] very ... heartwarming". Despite the Rolling Stones' predilection for blues and R&B numbers on their early live set lists, the first original compositions by the band reflected a more wide-ranging interest. Critic Richie Unterberger described the first Jagger/Richards single, "Tell Me (You're Coming Back)", as a "pop rock ballad ... When [Jagger and Richards] began to write songs, they were usually not derived from the blues, but were often surprisingly fey, slow, Mersey-type pop numbers". "As Tears Go By", the ballad originally written for Marianne Faithfull, was one of the first songs written by Jagger and Richards and one of many written by the duo for other artists. Jagger said of the song, "It's a relatively mature song considering the rest of the output at the time. And we didn't think of [recording] it, because the Rolling Stones were a butch blues group." The Rolling Stones did later record a version which became a top five hit in the US. Of their early writing experience, Richards