When this tune started on Mad Men, I was like "why do I know that song?" - then when the lyrics kicked in, and I realized what song it was, it about knocked me over! I had no idea the Naked Eyes version wasn't the original. Yet another reason to love Mad Men!
Just heard this, while catching up on Mad men. This song has always been with me, and I let it out at full voice sometimes at work! I was there for the Sandy Shaw version, though. Dionne Warwick's version is obviously great, since she was the ace at B/D songs, but I still love Sandy's version, no matter what peeps say about her screaming (or her stockinged soles). The Lou-wotsit version (as in Mad Men) is also excellent. Probably sounds more modern now, despite its antiquity.