SNSD and 2NE1 have also had successful worldwide tours.
"Worldwide"... Still waiting for my SNSD concert in Europe. That SMTown thing in France back then doesn't count. Babymetal was here last year and will be back in just 2 months (got tickets, yay) and last month I saw tricot here in my city. I wish some K-Pop groups would finally notice that Europe belongs to the world, too. But they don't even try anymore.