Britney's 'Moodring' dethrones Gaga's 'Rain On Me' on US iTunes.

So when do 4-year-old B sides get to number one? When Ms Britney, Bitch says so. 

'Mood Ring (By Demand)' has reached #1 on US iTunes kicking Lady Gaga and Ariana Grande's 'Rain On Me' from the top spot. The song is not even an official single, and it won't have a music video or promo roll-out. Pop Queens are doing it right now, and there's no reason for Britney and Gaga fans to argue. Both artists are still relevant and both fanbases will deal.