On the first show of his U.S. tour, Pink Floyd's David Gilmour was joined by fellow classic rock legend David Crosby.

Croz hooked up with Gilmour to sing "A Boat Lies Waiting" and "The Blue." Later on in the gig, he popped up again to help out on "On an Island" and "Comfortably Numb."

Gilmour picks up the trek - his first U.S. tour in 10 years - on March 31 at Toronto's Air Canada Centre.

The run comes in support of Gilmour's most recent release Rattle That Lock.