Petr Kolář, born on 20 June 1967 in České Budějovice, is a Czech singer known for his work in both pop and rock music. He was a member of the band Precedens in the late 1990s and later joined the rock band Arakain from 2002 to 2005. Kolář released his debut solo album Mackie Messer in 1999 and has collaborated with artists such as Iveta Bartošová, Michael Kocáb, Michal David and Daniel Landa. He is also recognized for his performances in various musicals.