Olivia Rodrigo holds a small notebook in black when she is walking to a standing car waiting in New York City on Friday night (August 26).

The actress and singer of 18 were wearing a pretty plaid skirt and wore braids in her hair to wrap the night with a recording session.

A few days prior, Oliviahit the stage along with Billy Joel in a surprise duet to the Madison Square Garden show.

"Biggest honor I've ever had, I'm still crying, thank you Billy !!!!!! !" she had written on her Instagram Stories following the duet they performed together.

Olivia performed two tracks in collaboration with BillyBilly - her popular hit tune "Deja Vu" and his hit classic "Uptown Girl."