He is the leader of the ARIA Award-winning Melbourne Ska Orchestra, frontman of his band, Bomba, as well as the former drummer and percussionist of John Butler Trio (2003–04, 2009–13).

[1] His youngest sister, Danielle Caruana, (who performs as Mama Kin), is married to his former bandmate, John Butler.

His older brother, Michael Caruana, is a member of Bomba and of Mama Kin's backing band.

[5] Initially Bomba was on drums with Michael on keyboards, Tony Kopa on lead vocals and Geoff Wells on guitars.

[6] The trio issued a self-titled album on Mushroom Records[6][7] In 1998, Bomba formed a jazz band called Banana Oil, with Andy Baylor on guitar, Tim Neal on keyboards and David Williamson on saxophone.

At the APRA Music Awards of 1998 Banana Oil members, Bomba (as Nicholas Caruana), Chris Tabone and Trevor Wraight, won Most Performed Jazz Work for their composition, "My Family".

By 2006 the group had released four albums, Population (April 2000), Solar Plexus (February 2002), Learn to Breathe (March 2005) and Bomba Vs. Laroz (September 2006).

[15] They recorded Intrepid Adventures to the Lost Riddim Islands over a week-end and released it on 14 May 2012; they followed with a tour in June and July.

[18] Lukas Murphy of Issuu magazine felt the album was "to be taken with a healthy dose of carefreeness" as exemplified by lyrics where "nonsense is rarely utilised in such a juxtapositional way, matched with both expertise and musical frivolity.

[21] Bomba's sister, Danielle Caruana, performs as Mama Kin, and is married to John Butler.