Yoo Yeon Seok and Super Junior's Kyuhyun have dropped their music video for "Happy Together".

The MV features Yoo Yeon Seok and Kyuhyun in the studio as they record the theme song and footage from the show 'Bro & Marble'. "Happy Together" is a cheerful track about being able to do anything with someone by your side, and it's the duo's theme for the reality series that follows them as they try to win a real-world scale version of Blue Marble.

Watch Yoo Yeon Seok and Kyuhyun's "Happy Together" MV above, and let us know what you think in the comments below.