Like many others 45 years ago Marc Bolan and T.Rex introduced us to rock music. We didn't know that this music will be called glam. Anyway we went and bought theirs singles or albums. T.Rex will be often named when someone is talking or writing about glam and the early 70's music. Not only for sentimental reasons - their songs were superb arranged, catchy and worth to be listened decades later.
And as a bonus: A live version of this song done by Morrisey