Watch: YouTube stars blend top hits of 2015 in 3.5 minutes

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Internet sensations Michael and Carissa have made a name for themselves as “Us The Duo” on YouTube and Vine singing covers of popular songs.

Their #6SecondCovers on Vine trend all over social media. Last year, their “2014 Hit Recap” garnered more than 14 million views on YouTube. They covered the top hits of the year in just 2.5 minutes.

This year, they are back at it again. Monday, they released “2015 Top Hits in 3.5 Minutes.”