Janusz Kruk (7 August 1946 – 18 June 1992) was a Polish singer, guitarist and composer, the leader of the popular band 2 Plus 1.

Kruk went to a musical school in Warsaw, where he learned to play double bass.

In January 1971, Janusz and Elżbieta formed a new group, 2 Plus 1, which would become highly successful in Poland in the 1970s and the first half of the 1980s.

On the turn of decades the band scored a number of minor hits in Western Europe and Japan, and released two albums internationally.

[1] Janusz Kruk died from a heart attack on 18 June 1992, aged 45, leaving behind his partner and two children.