Here's an unfunny sketch from The Dean Martin Show - which appears to be little more than an excuse to shove as many celebrities as possible into a five-minute segment.But what celebrities! Just about every big name from TV comedy, talk, and variety series of the time (1970) - appear. Even Lucy, Carol Burnett, and The Smothers Brothers - from rival CBS (Dean was on NBC) show up.
That's Petula Clark singing; she was a part of the British Invasion with her big hit "Downtown", and was a regular on Dean's variety show at the time.