In terms of digital songs, the largest seller of the songs performed on the show is Katy Perry's "Dark Horse," which was already the biggest selling song of last week. It's hard to compare her song to anything else that was performed on the show, simply because it was already the top selling song in the country -- and gaining in sales -- before it was performed on the broadcast. A week ago, it sold 261,000 downloads.
Among the songs performed on the show that are aiming for 100% or more increases this week: P!nk's "Just Give Me a Reason," John Legend's "All Of Me," Musgraves' "Follow Your Arrow" (up by more than 200%) and Taylor Swift's "All Too Well" (which may grow by more than 3,000% to around 18,000 downloads).
Macklemore & Ryan Lewis' "Same Love," featuring Mary Lambert -- which was the centerpiece of an elaborate mass wedding ceremony during the show -- may grow by more than 100% as well. It might have sold around 25,000 for the week ending January 26 -- up from 11,000 a week ago.
http://www.billboard.com/biz/article...-musgraves-pnk
