First recorded by Cathy Carlson (released January 1971).
Hit album version by The Carpenters (released May 1971)
Hit single version by Jack Jones (MOR #18 1971).
Also recorded by Matthew Sweet (1994).
From the wiki: “A native of Ontario, Oregon, Cathy Carlson appeared regularly as a performer on ‘The Tonight Show’ in the late 1960s and early ‘70s, and on the annual Jerry Lewis Telethon for Muscular Dystrophy. Carlson and Lewis were such good friends, he became her daughter’s godfather. ‘Let Me Be the One’ (co-written by Paul Williams) was recorded in December 1970 and released in 1971 as the B-side to Carlson’s single, ‘God Bless the Child’.”