My cousin played and sang a stripped down version of Keith Urban's Making Memories of Us for his sister's (my cousin's) wedding. He really nailed the country voice thing, and he got nothing but compliments for the rest of the night. Its a little fast, so he slowed it down a bit.
Overall, I thought it was really cute, especially the fact that he sang it for his sister. Regardless, I thought it was an awesome song choice by the wedding party.
Sample of Song, Click on blue triangle to right of Making Memories of Us to play