Deserted Island Band!
What is the band you take?
For me it is radiohead
Marvin Gaye
shareIn reality I'd probably take something I hate intensely already. Anything hip-hop related, for instance.
In the movie they never specify the length/circumstances, and I have to assume you're supposed to be on this island for a limited time. I love so many bands and artists, but if I only could listen to one of them for say a year, I'd wind up hating them. So I'd choose something that I would'nt mind ruining for the rest of my life. 
IMDb-boards would be less confusing if people would mark their signatures clearly.