This is after all a history of music thread so its only fair to reflect on what was dominating the singles chart in 1973. In the UK, It was The Osmonds, Donnie, Little Jimmy, David Cassidy, Gary Glitter, Slade, David Essex, Wizzard, Sweet, Bowie. Spending more than 10 weeks in the top 10 were Dawn with Tie a yellow ribbon.. Alvin Stardust with My Koo ca Choo, Peters and Lee, Welcome Home and the New Seekers with You wont find another fool like me.
If I had to pick a single (and to be honest I disliked most of the above), lets go for Manfred Manns Earth Band - Joybringer
The US showed far better taste than us and I would pick for 1973 Roberta Flacks, Killing me softly with his song