These are the Billboard Hot 100 number one hits of 1975. Both 1974 and 1975 hold the Hot 100 record for the year with the most No. 1 hits with 35 songs reaching the No. 1 spot. Additionally, the period beginning January 11 and ending April 12 constitutes the longest run of a different No. 1 song every week in Billboard history. Coincidentally, it both begins and ends with songs by Elton John. The longest running number one song of 1975 is "Love Will Keep Us Together" by Captain & Tennille, which spent 4 weeks at the top spot.