Steve Winwood opened Steely Dan's four-show British arena tour and at the final show at SSE Arena in Wembley Monday night. He joined the headliners to sing and play organ on "Pretzel Logic." You can find good video of it on YouTube.
Also joining Steely Dan for the first of their two encore numbers, "Reelin' in the Years," was guitarist Elliott Randall, who played lead on the original recording.
His guest shot is also up on YouTube.