Original sentence: For most of their career, the group's lineup has consisted of vocalist Anthony Kiedis, guitarist John Frusciante, bassist Michael "Flea" Balzary, and drummer Chad Smith.In addition to Kiedis and Balzary, the group originally featured guitarist Hillel Slovak and drummer Jack Irons
Edited sentence: For the most part, the group's lineup has consisted of Anthony Kiedis (vocals), John Frusciante (guitar), Michael "Flea" Balzary (bass), and Chad Smith (drums).In addition to Kiedis and Balzary, the group originally featured  Hillel Slovak on guitar and Jack Irons on drums