Original is better, but this will probably help more for US radio. After the success of loads of British artists recently, I can actually see him doing well over there.
It's a shame Rizzle Kicks aren't on there, as they're amazing, and their verse was perfect, but oh well. It's a brilliant song, I hope it's massive in the US like it was in my country. It was one of the best #1s of last year imo.
Olly Murs doesn't have many other good songs though. I only like Heart Skips a Beat, but the rest of his songs are really different.
Maybe I just love his attitude and how he looks more than anything, but I just find Olly so adorable and his music is fun. Hope he finds some success here!