What's a good album to get for my six-year-old nephew?

I’m going to be visiting my brother and sister-in-law next week, and I want to get some music for my nephew. Any suggestions?

I don’t want to get him “kids’ music.” He has plenty of that, and he prefers real music. I was thinking about getting him Yael Naim, but I’m not sure if he’d enjoy listening to music with lyrics he can’t understand.

And it’s gotta be something his parents won’t find to be “objectionable.” No explicit lyrics, etc.