John Sykes (born July 29, 1959 in Reading, Berkshire), is an English heavy metal/hard rock guitarist who has played with Streetfighter, Tygers Of Pan Tang, Badlands, Thin Lizzy, Whitesnake, Blue Murder, and his solo project John Sykes. He was in a band called Badlands, with his one time Whitesnake bandmate Neil Murray (not to be confused with the band Badlands featuring guitarist Jake E. Lee). Sykes played on the 1987 Whitesnake self titled album. This was Whitesnake's most successful recording, selling over eight million copies in the USA alone, and contained the hit singles "Still of the Night", "Is This Love" and "Here I Go Again".
In 1999, John Sykes's solo song "Cautionary Warning" was used in the anime series Black Heaven. The footage accompanying the song was rotoscoped from one of Sykes' concerts, which was a very striking statement for use in previews. Sykes' involvement in the series was the key feature of Pioneer USA's marketing. Sykes made rare guest appearances on the Glenn Hughes/Joe Lynn Turner project first HTP album on the track "Heaven's missing an angel" and later on keyboardist Derek Sherinian's 2004 solo album "Mythology", playing alongside Zakk Wylde on the track "God Of War". In 2006 Gibson Guitars began producing an "Inspired By" Gibson Les Paul Custom which was modeled after Sykes' main Les Paul.