Artists that are WGWAGs in spirit?

For the unaware, WGWAG stands for white guys with acoustic guitars, a term coined by Todd, although it's more about a vibe rather than being strictly a white guy with an acoustic guitar.

I saw someone call Daniel Powter a WGWAG despite being a pianist and so I'm curious which artists fall under this category.

I think the only requirement to be a WGWAG is to be a singer-songwriter who plays a specific instrument, and writes "deep" lyrics.

Edit: Lauryn Hill's MTV unplugged might be an example of WGWAG