Winners (plural), actually. E-mails arrived simultaneously from Jack Lechner and Brian Carroll identifying the song I asked about as "Little Green Bag," recorded in 1968 (much earlier than I thought) by a group called the George Baker Selection. Needless to say, I had the lyrics all wrong. The part I quoted actually goes…
Lookin' for some happiness
But there is only loneliness to find
Jump to the left, turn to the right
Lookin' upstairs, lookin' behind, yeah!
Thank you, Jack and Brian. Now, that's off my mind.