"Let's Get It On" became, and remains to this day, one of Gaye's as well Motown Records most successful singles, as it reached number 1 on the "Billboard" Pop Singles chart on September 8, 1973. The single remained at number 1 for two weeks, while also remaining at the top of the "Billboard" Soul Singles chart for eight weeks. In its first week at the top of the chart, "Let's Get It On" replaced "Brother Louie" by Stories, and was replaced by "Delta Dawn" by Helen Reddy; it later replaced "Delta Dawn" and was finally knocked off the top of the chart by Grand Funk Railroad's "We're an American Band". The single stayed inside the "Billboard" Hot 100 top 10 for 13 weeks, 10 of those weeks inside the top five. "Billboard" ranked it as the No. 4 song for 1973.