Jack Deskin’s ITC Uptight Neon with a rainbow glow effect for “Guilty” by Mike Oldfield, an instrumental track recorded in New York and released in 1979 on Virgin Records. Sleeve design: Cooke Key. Photography: Christa Peters.
Wikipedia mentions that the recording is “notable for being Oldfield’s first obvious attempt to capitalise on a current musical trend, in this case disco/dance music.”