Running Wild with Bear Grylls Zac Efron discusses drug use on 'Running Wild with Bear Grylls' premiere 07/30/2014 Zac Efron had a candid conversation with Bear Grylls about what it's like to be in the spotlight 24/7 and what exactly made him lose himself in drugs during Monday's premiere of NBC's new "Running Wild with Bear Grylls" reality series. Read More RELATED NEWS Julia Roberts to star on 'Running Wild with Bear Grylls' Red Nose Day special on NBCLindsey Vonn on 'Running Wild with Bear Grylls' -- I loved Tiger Woods so much, and I still doCourteney Cox joins Bear Grylls on 'Running Wild' for survival adventure in Ireland TAGS: Bear Grylls Zac Efron The Neighbors High School Musical
