First one I thought of.
Get Down,Make Love by Queen was the second.
I Will Die for You; Garbage ( Was used in the updated Romeo and Juliet movie from the 90s)
Do You Love Me (Now That I Can Dance); but you have to watch it as part of Dirty Dancing.
Divinyls - I Touch Myself
Speaking of which: You Look so Fine. And Queer.
River Deep Mountain High - Ike & Tina Turner (not even Ike, looking creepy as all hell, can ruin the sex appeal Tina puts on display here.)
More Than This - Roxy Music
I Feel Love - Donna Summer
Heart of Glass - Blondie
Love Is a Stranger - Eurythmics
Kiss - Prince (couldn’t find a YouTube video with the music, but here’s the words. Lol)
Foolish Love - Rufus Wainwright
Dating myself as much as the OP.
So many. But here are three that do it for me:
Deh Vieni Non Tardar, from Mozart’s Nozze di Figaro. This is Anna Netrebko. The tempo is a bit faster than I think it should be, but her voice is just gorgeous. Start listening at 1:20, if you’re short on time.
Do You Wanna Touch Me, Joan Jett. Why, yes, Joan, now that you mention it, I do want to touch you. There.
I’d Rather Go Blind. Etta James. Twisted and obsessive, but sexy, for sure.
When I Was Yours, Emmylou Harris. Beautiful. Sexy. And check out that violin solo (I actually think it might be a viola – anyone else think so?) – nearly as sexy as the vocal.
George Michael “I Want Your Sex”:
Wicked Games is a good choice. Something about the line “I didn’t want to fall in love” (but you’re so hot,…resistance is futile) always seemed really sexy to me.
My (obscure) choice is Daydream by Robin Trower.
I can remember a time when Madonna would have been mentioned a lot earlier in this kind of thread. Of course, back then the World Wide Web was shiny and new.
Forgot the link. Daydream
Ohio Players - Sweet Sticky Thing
Kiss - Larger Than Life (wouldn’t have thought of this one if it hadn’t been… inadvertently field tested)
Preferably in a park bathroom.
I thought everyone knew that Glory Box by Portishead is the sexiest song ever. 
I would say Father Figure is the sexier if slightly creepier George Michael song.
Midnight At The Oasis, Maria Muldaur.
I can’t eke “sexy” out of someone doing a Shelly Duvall Olive Oyl impression…
This from someone who thinks Steve Miller Band is hot?
Touche…
Thank god I can stand on my pedestal and say you’re both wrong.
And while we’re dissing other people’s selections: “I’m so excited” is “sexy”??? W?T?F?
Yeh, I don’t think you could seduce someone by playing “I’m so excited” its more of a get up and dance song.
I don’t think Goerge Michaell could ever be sexy to me, I like singers that sound like men— Goerge Michael makes me feel icky.
Jonny Lang- real man’s voice (despite looking like a child)
Lie to Me
[quote=“Sputnikkk, post:39, topic:740310”]
Jonny Lang- real man’s voice (despite looking like a child)
Lie to Me
He’s pretty good, but that song ain’t particularly sexy and his voice sounds like he looks age-wise.