Easily one of the best/sweetest videos you'll ever see.

A video has gone crazy viral on twitter, showing a man belting it out for his wife. The video, tweeted out by the daughter, shows dad absolutely serenading his lovely bride on her birthday, singing "Unchained Melody".

As of this writing, the video sits with 62,000 retweets and 206,000 likes.

The video has caught on fire largely because the man's wife is barely paying him any attention. He is pouring her heart out to her, and she doesn't say a word, until he gets a little off the beat, of course.

You can tell this is one loving family, and i wouldn't be surprised if dad sings like this to his lady on the daily.

You have to see this!