This could've been the last hit record for the late Bobby Darin, but, alas, it wasn't released as a single.
In 1972, Darin had his own variety show, The Bobby Darin Amusement Company, airing on NBC as a summer replacement for Dean Martin, which gave the versatile Darin the opportunity to not only sing, but demonstrate his acting skills in comedy skits.
In this clip, he teams with Petula Clark for a cover of the Everly Brothers' "All I Have To Do Is Dream", which had been covered by Glen Campbell & Bobbie Gentry, and later by actress Victoria Principal, of all people, and Andy Gibb.
In doing research, I checked the discography on Darin, and that's how I know this version of "Dream" wasn't released as a single. Ms. Clark had also stopped reaching the Top 40 by this point as well. But, ah, don't they make such a cute couple?