DAVID BOWIE stunned fans in London last night (29MAY06), when he joined DAVID GILMOUR onstage to sing two PINK FLOYD songs. Bowie appeared during an encore at the end of the first of Gilmour's three-night run at the Royal Albert Hall, to make his first UK appearance in nearly two years. After helping Gilmour sing ARNOLD LAYNE and COMFORTABLY NUMB, the Pink Floyd fan was given a standing ovation. Bowie wasn't the only star to help Gilmour - David Crosby and GRAHAM NASH sang on the title track of the singer's new album ON AN ISLAND and joined him on Pink Floyd's SHINE ON YOU CRAZY DIAMOND and their own hit FIND THE COST OF FREEDOM.