Most ROMANTIC song you can think of

[JAMills]

F.H.G. by Tenacious D FTW!!!

Man you beat me to it. Good thing I read the entire thread instead of just postin'

TENACIOUS D - $#@! Her Gently

I would post the video but probably not appropriate for BP.net
Though it is a pretty funny cartoon

I am surprised no one put George Micheal - Sex

I will also have to agree with a few other post on here.
They may not be romantic but they are SEXY and great for "That Special Time"

NIN - Closer
Tool - Forty Six & 2, and Stinkfist
Hinder - Get Stoned
Korn - A.D.I.D.A.S.
Puddle Of Mudd - Control, and Away From Me

I can go on with this for a long time but I will stop there.

Now for the most Romantic we are going country

Clint Black - Like the Rain!