U2 and Green Day teamed up for charity last night (September 25).
The two rock heavyweights were performing at the re-opening of the New Orleans' American football stadium, Louisiana Superdome, which became a major shelter point during Hurricane Katrina.
The set opened with Green Day performing 'Wake Me Up, When September Ends', before U2 joined them on stage for a cover of the Skids track 'Saints Are Coming', which was followed by the U2 number 1 hit 'Beautiful Day'.
U2 and Green Day have recorded a version of 'Saints Are Coming' to raise money for Music Rising, a charity set up to financially support musicians affected by the 2005 hurricane.