The 51-year-old Homecoming actress and the 17-year-old “bad guy” singer stepped out for the American Society of Composers, Authors and Publishers event held at The Beverly Hilton Hotel on Thursday (May 16) in Beverly Hills, Calif.
Julia donned a floral dress, while Billiesported a Powerpuff Girls ensemble.
In a surprise appearance, Julia presented Billie and her older brother, fellow singer Finneas, with the Vanguard Award.
“When I started this s–t, I did not think anyone would give a f–k, so thank you for giving a f–k,” Billie said, thanking fans for “being appreciated for not just being a brand or being just a name and a face, but appreciated for actually creating something and writing it, especially when we wrote it for nobody except us. Especially by Julia Roberts? Geesh! The baddest bitch around.”