U2 lead singer, Bono and Oscar-winner Glen Hansard were joined by Damien Rice and Mundy for a 'super busk' on Dublin's Grafton Street on Christmas Eve.
The one-hour impromptu performance on the capital's busiest shopping street was witnessed by just a few startled passers by.
Songs performed include 'Knocking on Heaven's Door', 'Stand By Me' and 'Heyday'.