Larry Mullen Jr. of U2's songs, helping to evoke military imagery. During the recording of the album "Pop" in 1996, Mullen suffered from severe back problems. Recording was delayed due to surgery. When he left the hospital, he arrived back in the studio to find the rest of the band experimenting more than ever with electronic drum machines, something driven largely by guitarist The Edge's interest in dance and hip-hop music, and, given his weakness after the operation, he relented, allowing The Edge to continue using drum machines, which contributed heavily to the album's electronic feel. Mullen has had tendinitis problems throughout his
War (U2 album) Bloody Sunday", Lillywhite encouraged drummer Larry Mullen, Jr. to use a click track, but Mullen was firmly against the idea. A chance meeting with Andy Newmark (of Sly & the Family Stone) – a drummer who used a click track religiously – changed Mullen's mind. Mullen used the click track to stay in time for other songs on the album. Mullen said of the album in a 1983 interview, "I think the drumming has always been pretty simple, I don't think it needs to be flashy. For "War" I use a click track, something I haven't used before, it's a