Billie Eilish, 18, Attends Her First-Ever High School ‘Prom’ Performs ‘Bad Guy’ — Watch

hollywoodlife.com:

If Billie Eilish were a high school student, this would be her senior year! Despite being an internationally famous celebrity, the 18-year-old just attended her first-ever prom and it was so cute. “I’m excited!..I have never really been to prom,” she admitted to John Krasinski on Friday, April 17 at his virtual quarantine gala event.

It turns out she had attempted to attend one in the past, but it wasn’t what she had in mind! “I went to one homeschool prom — which — let me tell you is not prom at all!” she also confessed.

Billie was joined by her big brother Finneas O’Connell, 22, for the milestone event and the pair added a little pizazz to their outfits for the occasion.