Honeystar (2007)

A newlywed alien couple come to Earth on their 'honeystar'. They first visit Australia, but the groom is promptly kicked to death by a kangaroo. After returning to life, the groom tries to appease his bride by throwing Australia away. The bride remains unsatisfied, forcing the groom to begrudgingly agree to destroy the entire planet on the condition that he gets to take a specimen of Earth back with them after the deed. So begins the world's largest ever audition, to decide the first and final representative of Earth, orchestrated by the cutest sadistic couple in the galaxy, who bide their time traveling Japan during the selection process...