
"When You Walk In The Room" was a hit for Dusty Springfield, and The Searchers, too. You'd never know there were vocals missing if you heard The Ventures' (Live in Japan '65) version first.
Donovan's "Colours" was a hit in the UK, but I prefer this non-hit instrumental version released by Van Dyke Parks on his Song Cycle LP.
And finally, we have one of the most wonderful pop songs ever invented -- try playing it on the instrument of your choice if you don't believe me -- The Beatles' "Please Please Me", as codified (why re-invent the wheel?) by Link Wray. I mean, honestly... what more could you want?
Lick It Up