Nick Gavrilovic is a 27-year-old (??) Yugoslavian musician who roadied for The Libertines and filled in for Peter Doherty on guitar during Peter's first absence from the band in mid-2003.
After leaving The Libertines as a roadie, he went on to co-found a rock band called One Finger Zen with Peter Brame in 2004. They started touring pubs and clubs in the UK, buying an old fire engine which they used instead of a van. Despite getting a favourable reception from audiences, Brame was declared bankrupt in May 2005 and the band split later that year. They did not make any official releases.
Since the beginning of 2008, Nick joined Placebo as a background guitarist on their tour.