As such, just because, I present to you my top 5 Mraz cover tunes. These are all on my download page, but if you want direct links let me know.
In the Name of Love - Kenny Rankin
Dear Anna - Carlos Olmeda
Unravel - Bjork
Future Boy - Turin Brakes
Summer Breeze - Seals & Crofts
I would welcome your top 5 as well. A complete-ish list of covers can be found here. GO!