Best of 2011

Hollywood's All in the Family Year!

From the Olsens and the Middletons to the Kardashians, these siblings prove fame is in the DNA

THE HOUGHS

DEREK & JULIANNE
It's no longer strictly ballroom for Derek and little sister Julianne. While Derek continues his run as the most winning DWTS pro (with three mirror-ball trophies), Julianne, 23, showed off her dancing and acting skills in the Footloose reboot. "Julianne is an absolute superstar," Derek, 26, told PEOPLE. "This girl is incredible. I'm so proud of her."