Claim: The Who's first single was a song.
Evidence: Their first single as the Who , `` I Ca n't Explain '' , reached the UK top ten , followed by a string of singles including `` My Generation '' , `` Substitute '' and `` Happy Jack ''.
`` I Ca n't Explain '' is a song by the English rock band The Who , written by Pete Townshend , and produced by Shel Talmy.