Friday marks 55 years since an iconic rock band saw arguably its most polarizing and contentious reach No. 1 on the Billboard Hot 100. Last Friday was the 55-year anniversary of the Rolling Stones' legendary album , Sticky Fingers , reaching No. 1 on the Billboard 200. It was also on this day, 55 years ago, that one of the tracks from Sticky Fingers reached the Billboard Hot 100. On May 29, 1971, "Brown Sugar" jumped into the No. 1 spot on the Billboard Hot 100 . The song replaced "Joy to the World" by Three Dog Night, which had occupied the top spot for six straight weeks. "Brown Sugar" stayed at No. 1 for two consecutive weeks before "Want Ads" by the Honey Cones jumped the Rolling Stones' big hit. However, "Brown Sugar" remained in the top five for two weeks. In their 2004 rankings of the 500 greatest songs ever, Rolling Stone placed "Brown Sugar" at No. 494 on the list. The Rolling Stones recorded the song from Dec. 2-4, 1969, at the Muscle Shoals Sound Studio in Sheffield, Alabama.…