About John Lydon
John Joseph Lydon, also known by his former stage name Johnny Rotten, is an English singer, songwriter, author, and television personality. He was the lead vocalist of the punk rock band the Sex Pistols, which was active from 1975 to 1978, and again for various revivals during the 1990s and 2000s. He is also the lead vocalist and the only consistent member of post-punk band Public Image Ltd (PiL), which he founded and fronted from 1978 until 1993, and again since 2009.
Biography source:
Wikipedia
