Public Image Ltd (PiL) is an English post-punk band formed in 1978 by John Lydon (formerly Johnny Rotten of Sex Pistols), guitarist Keith Levene, bassist Jah Wobble, and drummer Jim Walker. Known for their experimental sound, PiL has explored various musical styles, including dub, noise, and dance. Their debut album, "Public Image: First Issue," was released in 1978, followed by influential albums like "Metal Box" and "Album." The band's lineup has changed multiple times, with Lydon as the only constant member.