Katy's tour will start better because she's starting overseas were tickets & capacities are going to be probably bigger. So we will have to practically wait until the end of both tours to see who did better.
2013
1) Pink - The Truth About Love [2.9 million copies]
2) Taylor Swift - Red [1.9 millon copies]
3) Rihanna - Unapologetic [1.9 million copies]
4) Katy Perry - Prism [1.8 million copies]
5) Adele - 21 [1.6 million copies]
6) Emeli Sande - Our Version Of Events [1.5 million copies]
7) Lana Del Rey - Born To Die (Paradise-Edition) [1.4 million copies]
8) Beyoncé - Beyoncé [1.4 million copies]
9) Lady GaGa - Artpop [1.3 million copies]
10) Miley Cyrus - Bangerz [1.2 million copies]
11) Celine Dion - Loved Me Back To Life [1.1 million copies]
12) Lorde - Pure Heroine [1.1 million copies]
The SuperBowl is coming too, that gave Beyonce like 150,000 WW sales in 3-4 weeks on MediaTraffic so for Bruno it could be like 400-500k easily 
