Two of the biggest songs of last year - that'd be Sam Smith's 'I'm Not the Only One' and Ed Sheeran's 'Thinking Out Loud', then - have been spliced together by two inventive American singers.

The songs have a similar tempo and fit together eerily well, as you'll see for yourself. 

Casey Breves and Sam Tsui - hereby known as 'Shmeerith', according to us - have cobbled together a rather professional-looking video for their endeavour, too, which can be seen below.

Via Buzzfeed