Is that the best you can do? Adorable baby unimpressed with older brother's singing Oliver Copeland just wants to record a round of Happy Birthday, but in this adorable new clip his younger brother Casper isn't impressed with his singing voice. As Oliver tries again and again to get the song going, Casper simply looks at him as if he's gone crazy. Oliver does his best to get his sibling to join in, even shouting 'sing!' in the infant's face in case the message isn't getting through. Oliver Copeland wants to sing Happy Birthday, but younger brother Casper isn't impressed The infant turns his back on his singing brother But even in the face of such insistent demands, Casper just falls over and headbutts his brother. Finally the fussy infant is replaced with a much more agreeable partner, a stuffed doll. The clip was created by a man who knows comedy. Casper would rather headbutt than join in Finally, Oliver gets a more agreeable partner Father Brad Copeland wrote and produced the classic sitcom Arrested Development. He's also been tapped to write and direct the first feature film from College Humor. And as the end shows, he's clearly a man who appreciates good casting.