Belfast artist Stephen Whalley was pleasantly surprised when U2's The Edge purchased his portrait of the Titanic Museum at a charity auction. The painting, created live during the event, was described by Stephen as a career highlight. The Edge's bidding on the artwork left Stephen feeling humbled and encouraged. The artist, a big U2 fan, was thrilled by the experience and happy to raise funds for charity. The Edge's down-to-earth demeanor made the interaction a memorable and heartwarming moment for Stephen.