IASF.
I believe they sold around the same amount of albums.
The tours were comparable to each other.
The singles fared the same on charts.
Eh. It's a toss up.
Both albums sold around the same number of copies, despite IASF selling a million more in the US.
The singles department is close too, but So What was kinda bigger than any Beyonce song ever.
Both tours were big but the Funhouse Tour was bigger.
