Heatwave is a International disco-funk group, band formed in 1975. Its most popular line-up featured Americans Johnnie Wilder Jr. and Keith Wilder (vocals) of Dayton, Ohio; Englishmen Rod Temperton (keyboards) and Roy Carter (guitar); Swiss Mario Mantese (bass); Czechoslovak Ernest "Bilbo" Berger (drums); and Jamaican Eric Johns (guitar).They are known for their singles "Boogie Nights", "The Groove Line", and "Always and Forever".

Source: Wikipedia (https://en.wikipedia.org/wiki/Heatwave_(band))