They say Imitation is the finest form of Flattery. I'm inclined to agree, especially when people are able to take a song and keep it's core feeling, while changing the sound around completely. Old School Freight Train has taken numerous Coldplay songs an put them to a bluegrass feel.
However, what happens when you take a song and put it to a Big Band? Well, Mark Ronson can answer that for you.
You still keep the same feeling of the song, while changing the instruments around entirely. If I was Coldplay, I would feel pretty flattered. And also feel pretty good that someone could make a song just as amazing from the one you already wrote.