I don't know if this is some kind of strange performance art or the lamest karaoke party ever, but there's no question that this is Vin Diesel singing along to Rihanna's 'Stay.'http://youtu.be/w5t-CmCwhZo

Look at how he feels it. Vin is feeling Rihanna's pain. He understands. He gets it.

And that falsetto! Why wasn't Mr. Diesel picked for a role in Les Miserables or Hairspray? Where's his Broadway debut role?

In all seriousness, Vin Diesel is not going to win American Idol any time soon. But the dude is emoting so hard. He's making it his own. I think it's great. Way to get up there and leave it all up on the stage, Vin. Props.