All Summer Long was a number one hit in multiple countries.
 The longest running number one single of 1973 is "Killing Me Softly With His Song" by Roberta Flack which stayed at the top spot for five non-consecutive weeks
That year, 14 acts earned their first number one, such as Carly Simon, Elton John, The O'Jays, Vicki Lawrence, The Edgar Winter Group, Wings, Jim Croce, Maureen McGovern, Stories, Grand Funk, Gladys Knight & the Pips, and Charlie Rich

