Er...the original was by Derek and the Dominoes AKA Eric Clapton and Duane Allman's blues-rock supergroup. The song is about Eric Clapton's love for then-George Harrison wife Pattie Boyd. I'd say he deserves to be considered its original performer.
Oh, and I forgot:
Manfred Mann's Earth Band - "Blinded by the Light"
I like Springsteen, but this cover is the one that ended up being a classic.