Let's Get It On (song) five. "Billboard" ranked it as the No. 4 song for 1973. The song became the biggest selling Motown release in the United States at the time, selling over two-million copies within the first six weeks of following its release. "Let's Get It On" also became the second best-selling single of 1973, only surpassed in sales by Tony Orlando & Dawn's "Tie a Yellow Ribbon Round the Ole Oak Tree". At the time, the single was Motown's largest-selling recording ever, selling over three-million copies between 1973 and 1975. The single has gone on to sell over 1 million copies, and, on
Tony Orlando and Dawn whom he had hired to work as background vocalists while producing Barry Manilow in the late 1960s, to become Dawn. The threesome then went on the road in 1971, on the success of "Candida" and "Knock Three Times". After a tour of Europe, Hopkins and Vincent assumed background vocal duties in the studio, first recording on the late 1971 album "Dawn Featuring Tony Orlando". They were joined in the studio by Vincent's sister Pamela Vincent, who sang and arranged the backing vocals. Touring commitments with Aretha Franklin prevented Vincent from appearing with Dawn on tour. The first single with their