WATCH: David Bowie's guitarist in conversation

Hailing from Dublin and now based in New York, Gerry Leonard is one of the musicians closest to David Bowie.

With the iconic artist back with his first new material in a decade but still not committing to any interviews or appearances, Leonard's role as his long-time collaborator offers him a unique insight into Bowie's career and surprising return.

Leonard has not only been Bowie's guitarist, but also his musical director on recent albums and tours.

Here he talks to HP's Roisin Dwyer in a five-part interview that is essential viewing for Bowie aficionados and general music lovers alike.