Coming Up #OnWithMarioLopez – Singer/Songwriter #KelseaBallerini zooms in to talk about her new single I Quit Drinking, being on tour with the #JonasBros, and more! Plus, Courtney shares a spooky delicious #halloween hack, an #AlecBaldwin shooting update in the Buzz, and Mario tries a #PopTart for the first time in his 48 years of life!