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 (TV series) former Motown/Stax backing vocalists Telma Hopkins and Joyce Vincent Wilson to become Dawn. The threesome then went on the road after "Candida" and "Knock Three Times". After a tour of Europe, Hopkins and Vincent assumed background vocal duties in the studio as well. They were joined in the studio by Vincent's sister Pamela Vincent, who in addition to singing, arranged all the backing vocals. Prior touring commitments with Aretha Franklin prevented Vincent from appearing with Dawn on tour. The first single with their voices in the background was "Runaway/Happy Together" in 1972. The group (now billed as 'Dawn featuring Tony