Damjan Grbac was born on the 14th June 1979. He enters the world of music at the age of 12 by playing the clarinet in the Musical association „Spinčići“. He started playing the bass guitar at the age of 16. In the year 2000. he started to engage himself professionally in music.
He was improving his knowledge with the famous Croatian musicians such as the bass guitar player Henry Radanović, the guitar players Darko Jurković Charlie, Spartaco Črnjarić and the American jazz pianist Joe Kaplowitz. He attended the „ Jazz camp Kranj“ school several times where he improved his knowledge with the very esteemed contrabass player Aleš Avbelj and other famous musicians like Primož Grašič, Mario Mavrin, Emil Spany and the jazz – legend Boško Petrović. In 2011. Damjan graduated the five year Academy in Trieste „Giuseppe Tartini“. He is engaged in authorial and pedagogical work.
He is the member of the LeKap quartet (Joe Kaplowitz – Piano/hammond (USA), Lela Kaplowitz – vocal, Tonči Grabušić – drums, Damjan Grbac – double bass. In 2010. they published the jazz CD „Love me or leave me“.
At the „Last minute“ jazz festival in Bale (Istria) he cooperates with the musicians who work in the Nederlands. These are : Rajko Zjača (Holland), Stanislav Mitrović(Holland) and the drummer Ratko Divjak (Slovenia).
Damjan colaborates with many different Croatian bands, appears on several festivals and on the national TV HRT shows.