I love this youtube of Shania Twain - Man, I Feel Like a Woman. It's upbeat and fun, and the guys in the background are gorgeous! I listen to it in the morning before I go to work. Talk about motivation!
OTOH, she is so beautiful, and her husband still cheated on her. What do guys want, anyway???
http://www.youtube.com/watch?v=NZztO-fc9Oo