'Over and Over Again' sensation Nathan Sykes has shared the title of the song that has had the biggest impact on him so far. 

He sat down for a brief interview with Fuse magazine and revealed that there's one song he can pinpoint as being life-changing:

"A song that changed my life? Wow... that is an amazing question. Eva Cassidy 'Over The Rainbow'. I used to love singing that song so much. To kind of see people react in the way they did when I was performing it was really special."

Sykes, meanwhile, just announced that he will be joining Alessia Cara's tour of the USA in September and the jaunt is set to kick off on September 29 in Maryland. Tickets are available now and you can find out more here. 

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Watch Sykes in action here: