Why? And why now?
That's because Chris Moyles has decided it would be fun to get this particular Barrowman track into the top 40 so he's urging all his listeners to buy it. The plan is to try to get it played on the BBC Radio 1 chart show on Sunday, because they play the entire top 40. So if you like JB's music, buying now rather than later will really boost his visibility.
Given our current weather, it's just the right song for this week too! :)
PS, I don't think it has to be iTunes. I assume that buying the track from elsewhere will also count towards charts stats .