Michael Buble couldn't care less about getting cuckolded by actress Jaime Pressley in his 'Beautiful Day' video, which may be the cheeriest breakup anthem ever.

When he walks in on Pressley making out with a chubby nerd, he walks out -- and into a world of wonder. There's a bevy of beauties, birds landing on his hand, parades, choreography, sunshine, a kissing booth and even a few Buble back flips. The message here? It's her loss!