While the nominees won't be announced until next Tuesday, organizers of the American Music Awards announced Wednesday that pop star Jennifer Lopez will serve as host while also performing at the event. Organizers announced last week that Joe Jonas and Charlie Puth will appear on ABC's "Good Morning America" on October 13th to announce the nominees in six categories, while the rest will be revealed immediately following that telecast on SnapChat. The ceremony will take place November 22nd at the Microsoft Theater in L.A., with television coverage provided by AMC.