What are some popular songs that would be appropriate at a kid's birthday, but that adults would similar to also?

I'm having my daughter's birthday party in 2 months and I'm working on a play-list of music. The kids are really gonna be too busy on the bouncy castle to awareness the music, it's more to keep the adults entertained. But I'd prefer not to have a bunch of cursing and foul communication (I don't mind it, but I don't wanna offend anyone else or their kids). I'm drawing a serious blank right now :)
hannah montanna, large school musical, jonas brothers . these are songs both my daughters love they are 12 and 8 so a varied age
What genre of music do you like?
You could use country. Freddy was invited to a birthday body, a little girls and she had Taylor Swift playing as of the moment I was within.
Answers:    The Killers (don't be put off by the cross of the band) are usually good for that especially Spaceman and Human

I'd recommend making a playlist off Spotify of the songs people suggest and they'll play automatically if you want throughout the do. If you haven't downloaded it here's the link http://www.spotify.com/en/
Celebrate
The Laurie Berkner Band is a great one! My kids love her! And I like her, too! I'm always singing along with the cds! Fun, cute music for kids!
Get the soundtracks to both Curios George and Shrek! Lots of great tunes on both of them.

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