Closing Collaboration.

Nick Mason pleased with his appearance at the Closing Ceremony of the London Olympics.

Pink Floyd drummer Nick Mason says he's glad he sat in when singer-songwriter Ed Sheeran performed Floyd's "Wish You Were Here" at the Closing Ceremonies of the London Olympics last week. However, some fans of Sheeran's thought he was debuting a new song,

Mason writes in an E-mail to Sheeran, "As far as I'm concerned, what you did was a really great version of the song, and it's one of the nicest tributes to have any artist choose to play another's work, particularly an artist who's a great songwriter in his own right... Sooner or later people will work out the origin of the song, and who knows, maybe check out our catalog, just as hopefully our fans might check out yours."

Also playing with Sheeran and Mason that night was Genesis guitarist Mike Rutherford.