Jailbreak is the sixth studio album by Irish hard rock band Thin Lizzy, released in 1976. It proved to be the band's commercial breakthrough in the US. The singles include "Jailbreak" and "The Boys Are Back in Town", the latter being Thin Lizzy's biggest hit.Initially, the song "Running Back" was chosen to be a single ahead of "The Boys Are Back in Town", the latter being seen as possibly too aggressive for some radio stations to play. Frontman and songwriter Phil Lynott and producer John Alcock decided to employ session musicians to add more commercial elements to some of the tracks to try to produce a hit single, and Tim Hinkley was brought in to add keyboard parts to "Running Back".
Guitarist Brian Robertson was against the idea, as he liked the song as it had originally been arranged, in a blues format with his own additions of piano and bottleneck guitar. He later said, "I took enormous offence to [the changes]. I couldn't understand why they'd pay this guy a fortune just for playing what he did. Listen to it and tell me it's not bollocks." Robertson did not play on the finished version of the song and Hinkley is not credited on the album sleeve. Lynott said at the time that "Running Back" was "very much influenced by Van Morrison. I really like that song." Thirty-five years later, Robertson recorded his own versions of the song on his 2011 album Diamonds and Dirt.