So I guess you know why she chose them? Oh wait, you don't.
They're cute, they're fun, and Gaga liked what she saw. They had one of the biggest hits in Korea in 2013 behind 'Gangnam Style'. They are basically what everyone wants Gaga to be: safe, cute, fun, colorful, and whatever the opposite of pretentious is these days.
If she's going the opposite of pretentious route, then good. That's what we've been waiting for.