The English guitarist co-wrote Whitesnake's 'Is This Love,' one of the defining power ballads of late-'80s hard rock.

John Sykes, the guitarist whose talent helped propel Whitesnake to success, is dead at 65. He also worked with the bands Thin Lizzy and Blue Murder.

The renowned guitarist played with several successful bands from the 1980s including Whitesnake, Thin Lizzy and Tygers of Pan Tang.