Tyler Oakley

Before this cheezin'-smilin' sweetie turned into a big-time YouTuber and social media star, he was just growing up in Jackson, Michigan with his TWELVE siblings and heading off to Michigan State University -- earning his marketing and social media degree. This self-proclaimed "professional…

Nash Grier -- the most followed person on Vine -- billowed out a homophobic slur so loud and angry it is truly shocking. The 16-year-old posted the video in April -- then quickly deleted it. It features a snippet from a TV commercial about HIV. Grier clearly took issue with the message. The reason…