Which western songs could you imagine JPop artists performing?

[m-a-z-e]

I was listening to a bunch of english tunes with my sister yesterday (I've regained my love for western music) and we started talking about which songs we could imagine japanese singers performing.

BoA - Dip it Low (Christina Millian)

I figured with BoA maturity now after My Name she'd look great performing this song..it sounds asian anyways!

SOUL'd OUT ft. Namie Amuro - Hey Mama (Black Eyed Peas)

Kouda Kumi - Dirrty (Christina Aguilera)

Simply because of the Crazy 4 U video but still I think Kumi-chan would suit this song more than Christina.

So does anyone else have any ideas?