If you consider Gotye The Little Aussie That Could -- and we know you do -- then 'Somebody That I Used to Know' is definitely his engine. The infectious breakup ditty, which dropped in the States in January 2012, has not-so-quietly transformed from the out-of-left-field hit of the year into one of biggest surprise successes of all time.

'Somebody' has shown its versatility by reaching No. 1 on the charts in 26 countries and selling more than seven million copies worldwide. Its video has been viewed an astounding 235 million times on YouTube. And it has spawned countless cover versions and even more parodies -- the truly sincerest form of flattery.