Ariana Grande: 'Jimmy Fallon' Performance with Mac Miller - Watch Now!

Ariana Grande goes floral as she takes the stage to perform on Late Night with Jimmy Fallon on Friday night (June 14) in New York City.

The 19-year-old actress/singer was joined on stage by Mac Miller for a performance of their hit single “The Way”.

PHOTOS: Check out the latest pics of Ariana Grande

Before her performance, Ariana had to get a B12 shot from her doctor!

“Dr. Korovin giving me a B12 shot in my butt cheek backstage before Jimmy Fallon. The show must go on,” the singer captioned a photo on Instagram.

Watch Ariana perform “The Way” on Late Night with Jimmy Fallon below.