Justin Timberlake proves every single time he takes a stage that he's back in a big way. He rocked a suit -- and an undone tie -- on German TV show 'Wetten Dass ... ?,' where he not only sang and danced like a champ, but also brought some laughs, too.

Timberlake brought his signature class act to the European staple show to sing 'Mirrors' -- a track so phenomenal it may have served better as a lead single than 'Suit & Tie.'

Following his set, Timberlake channeled the King himself. He sang a bit of Elvis Presley's 'Suspicious Minds' and even rocked his signature curl, but Timberlake couldn't stop laughing enough to perform the entire song. We don't blame him ... and he still managed to do the original justice!

This was Timberlake's second performance of 'Mirrors' within a week's time. The former NSYNC heartthrob also killed it at the 2013 BRIT Awards performing the tune.

The Renaissance Man is likely gearing up for his dual hosting and musical guest 'Saturday Night Live' stint on March 9 and his week of performances on 'Late Night With Jimmy Fallon.' His performances on 'SNL' have garnered classic clips like 'D--- in a Box,' so it's clear he wants to showcase both his musical and comedic talents as much as he can. And we're lucky for it!

Watch Justin Timberlake Perform 'Suspicious Minds'