April 13, 2011 12:34 pm Bob Harper: Jillian Michaels Is Abandoning Me on “The Biggest Loser” The personal trainer also talks about why he’s so passionate about helping people lose weight and get healthy. US & World Videos 8:48 Matthew Rodrigues interviews Jojo Siwa and Rosie O'Donnell for Pride series ‘It's OK to Ask Questions' 1:55 Russia is trying to scare people away from the Paris Olympics, report says 1:07 Watch: Volcano erupts in the Big Island of Hawaii 4:21 Spider-Man's Jacob Batalon teases what fans can expect from “Reginald the Vampire” Season 2 1:49 Prince William and Kate Middleton mourn rugby star Rob Borrow in heartfelt tribute