Acoustic version of "Word up"

I was watching a CSI rerun the other day, and they used a piece of music that was an acoustic version of Word Up by Cameo. It was really catchy, and I would like to know who performed it. It was a really stripped-down version, and had a female vocal. Anyone know?

The artist in question goes by the name Willis.

That’s exactly it! Thanks - damn, but that’s catchy!