Bieber was dressed by Karla Welch, who styles several other celebrities including Sarah Paulson, Olivia Wilde and Tracee Ellis Ross.

Hairdresser Bryce Scarlett styled Bieber’s cropped auburn hair in waves, while makeup artist Mary Phillips gave her smoked out winged eyeliner and a glossy brown lip.

This year’s gala honored Salma Hayek with the Giving Tree Award, which recognizes charitable efforts to improve the lives of vulnerable children around the world. Previous honorees include Kim Kardashian, Gwyneth Paltrow, Jessica Alba and Drew Barrymore.

“I am so honored to be receiving the Giving Tree Award from Baby2Baby,” said Hayek in a statement. “My 39 years of involvement in supporting the wellbeing of women and children give me a deep appreciation and admiration for their heartfelt commitment and efficiency to get the job done. I am very am proud to share their mission and am eager to keep learning from these remarkable women.”

Hayek was hardly the only star in attendance at this year’s Baby2Baby Gala. Other notable guests included Heidi Klum, Demi Lovato and Sofia Richie Grainge.