"It's one of those songs where, as people realise it's available to buy, they'll pick up on it and startdownloading which is why momentum is growing for it, " he said.
Start by downloading the app now from the Windows Phone Store, and if you don't have Windows Phone 8 - be sure to check out the range of new devices here.
Starting this week, those downloading movies, TV shows and music illegally in the U.S. are going to start getting called out for committing Internet fouls.