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
Larry Mullen Jr. career. As a means to reduce inflammation and pain, he began to use specially designed Pro-Mark drumsticks. He uses Yamaha drums and Paiste cymbals. He was placed at # 21 in "Stylus Magazine"'s list of the 50 Greatest Rock Drummers. Although he occasionally plays keyboards and synthesiser in concerts, Mullen rarely sings during performances. He contributed backing vocals to the songs "Numb", "Get On Your Boots", "Moment of Surrender", "Elevation", "Miracle Drug", "Love and Peace or Else", "Unknown Caller", "Zoo Station" and "Daddy's Gonna Pay for Your Crashed Car" (only during Zoo TV Tour), and others. He occasionally performed a