Each year, billions and billions of people are injured crossing the street because they're distracted on their phones. So Jimmy sent his friend and YouTube superstar Mark Rober out to save the lives of folks who are not paying attention while crossing the street. Be sure to check out Mark's new show 'Revengineers' on Discovery Channel starting April 20th! Watch 'Jimmy Kimmel Live!' WEEKNIGHTS 11:35/10:35c on ABC. Stream on Hulu.