Ariana Grande Stayed Up til Five in the Morning Doing Improv with 'Victorious' Co-Stars

Ariana Grande blows a kiss to the cameras as she makes her way through the terminal at the John F. Kennedy International Airport on Friday evening (November 28) in New York City. The 21-year-old singer was catching a departing flight to London to perform at an upcoming event. PHOTOS: Check out the latest pics of