Vin Diesel: A man of hulking biceps, franchise-worthy looks and a baritone-like foghorn would love to get a little romantic.

The action hero uploaded a sad-town clip to YouTube last night of himself singing along to Rihanna's emotional "Stay." And we're shockingly impressed. The dude damn neared killed us with his basseriffic tones, soaked in the melancholy of what could be.

What could have been Vin? Who the hell hurt you? Why are you uploading such a tearjerker to YouTube on Valentine's Day evening? We may never know, but we sure hope he makes an album.