Olivia Rodrigo is celebrating her 21st birthday! The singer and musician celebrated the milestone alongside her closest friends, including fellow musicians and actors like Tate McRae, Iris Apatow, Conan Gray, the Kid Laroi, and more. Jenna Ortega and Olivia Rodrigo Disney days: Remembering their featuring song ‘Legendary’Olivia Rodrigo and Louis Partridge confirm relationship with a passionate kissA post shared by Olivia Rodrigo (@oliviarodrigo)Rodrigo shared a post showing her celebrating the occasion in a black dress with a plunging neckline. She accesorized the look with some jewelry, red lipstick, and with her hair pinned up.