Hannon also provided vocals for songs on the soundtrack for the film of "The Hitchhiker's Guide to the Galaxy" released in 2005, working with Joby Talbot, the composer for the film and former Divine Comedy band member. This sci-fi connection continued in late 2006, when he contributed vocals to two tracks – "Song For Ten" and "Love Don't Roam" – on the "" album. In an interview with Bullz-Eye.com, Hannon explained that, "literally, I was asked to add my vocal by the composer of the songs, who writes for the show. And I didn’t feel that I could say no, simply because I spent my childhood watching this programme. It would be just plain wrong to not do it." Hannon also lent his vocals to "Aliens", the last track on the Irish charity album "The Cake Sale" in 2006, organised by Brian Crosby of Bell X1 and featuring a variety of mainly Irish musicians.