Bono's rendition of 'Dying Sailor to His Shipmates' is one of the stand-out tracks on 'Rogue's Gallery: Pirate Ballads, Sea Songs and Chanteys', which hits stores worldwide today.
The album is a maverick collection of songs from a musical genre that has all but disappeared - the sea chantey. Running to 43 songs and produced by Hal Willner it has a dazzling cast-list from Bono and Sting to Nick Cave, Bryan Ferry, Lou Reed, Lucinda Williams, Rufus Wainwright and Richard Thompson.
As Dublin welcomed President Obama to receive the freedom of the city last week, here's how U2 honoured the incoming President at the Washington DC Inauguration Concert in 2009.