June 3, 2011 6:08 pm Celebrity Trainer from “The Biggest Loser” Learns to Ride a Bike Cara Castronuova is a celebrity trainer, world class athlete and boxing champion who?s gearing up for her next challenge: leading 2,500 bikers on a ride from San Francisco to L.A. US & World Videos 3:24 City council approves Disneyland expansion plan 2:45 Pro-Palestinian protest at USC amid commencement preps 2:06 Two young siblings died after being swept away in fast-moving water 4:37 Pro-Palestinian protest at Cal State LA 2:40 Here's what Stormy Daniels said during Trump's hush money trial