Musical inspiration can take many forms. When The O2 teamed up with SJM Concerts and the Country Music Association to launch the Country To Country (C2C) Festival five years ago, it unlocked the door for a different kind of music event, capable of utilising the whole of the North Greenwich complex.

The concept had been successfully trialled with the Sundance London music and film festival, which ran at the venue from 2011-14, but it was with C2C that it hit ...