Marco Andretti's 21st Birthday Weekend - Day 2(Heather Rene Smith)

(L-R) Speed skater Apolo Anton Ohno, IRL driver Marco Andretti, Playboy Playmate Heather Rene Smith, and actor Alfonso Ribeiro, attend Andretti's 21st birthday party at the Moon nightclub at the Palms Casino Resort early March 23, 2008 in Las Vegas, Nevada. Andretti turned 21 on March 13.

( - Photo by Ethan Miller/Getty Images North America)