HAHA Nah. You're cool.
LMFAO. I'm a girl, so I prefer the guy groups--except 2NE1, SNSD, and all the others are freaking awesome, too!
몰라 really does mean "Don't know" or "I don't know." If you wanna say "I don't know where your kids are," then it'd have to be more like _____________ 몰라. It really depends on who you're speaking to, also.
나도 몰라 pretty much means "I don't know, either"
It's used like:
Other: Jennifer 어디 있는지 몰라 (I don't know where Jennifer is)
You: 나도 몰라... (I don't know either)
Google Translate...is a bit funky when it comes to Asian languages.