The Fame (Monster) ***** all over Teenage Dream in every single aspect bar US singles success. And even there, on a WW level, "Bad Romance" obliterates every Katy's single.

Massive album sales, massive singles sales, massive tour, great critical acclaim, impact, video views, three Grammy Awards, seven Video Music Awards >> five US number one hits, three of which performed moderately worldwide.

The era that didn't discount songs or use remixes to get the 5 #1's the kats keep using to attempt to win their argument.

The Fame Monster ***** all over Teenage Dream any day