Listen to Rihanna on iHeartRadio

Vin Diesel had posted the homemade karaoke video on his Facebook page on Valentine's Day.  Dressed in jeans and a dress shirt, the 45-year-old actor is seen singing along to Rihanna's video that's being projected in the background. 

He ends the clip by saying "Happy V-day" to a mystery "amour" and blowing a kiss to the camera.  

How sweet!

Photo Credit Getty Images