Britney Spears in Beverly Hills (12/15)

The director of Britney Spears latest music video "Piece of Me" (below) is claiming the troubled star was a joy to work with. No, seriously. Director Wayne Isham told People magazine:

"On set [Britney] was very professional, excited to work and beautiful as always. I was impressed with her focus as she choreographed the dance herself. Her endurance was remarkable, as we had a long day." (Source)

Well that's meth for ya'. It gives you energy. You act strange and do stuff you normally wouldn't do. One time I got so high I watched an entire episode of The Tyra Banks Show without slitting my wrists. My family was so worried about my unusual behavior that they forced me into rehab the next morning.