Ariana Grande and her boyfriend, Ethan Slater, kept things low-key at the UK premiere of Wicked on Monday night, subtly ...

Ariana Grande emulates Glinda in London, plus Adam Sandler, John Legend, Rihanna and more. From Hollywood to New York and everywhere in between, see what your favorite stars are up to.

A special kind of encounter: as her song plays from the car next door, Ariana Grande doesn't miss a beat and joins in. The ...