Complex sentence: Sir Michael Philip "Mick" Jagger (born 26 July 1943) is an English singer and songwriter, the lead singer and one of the founder members of the Rolling Stones.
Split into simpler sentences: Sir Michael Philip "Mick" Jagger (born 26 July 1943) is an English singer and songwriter. He serves as the lead singer and one of the founder members of the Rolling Stones.