Katy Perry, Drew Barrymore, & More Bring High Fashion to Children's Hospital LA Gala

Katy Perry and Drew Barrymore pose together as they arrive at the Children’s Hospital Los Angeles on Saturday night (October 15) in Los Angeles.

The 31-year-old “Rise” singer was also joined at the event by Katharine McPhee, Eric Stonestreet, Josh Gad, Jamie Lee Curtis, and Colin Egglesfield.

PHOTOS: Check out the latest pics of Katy Perry

The gala celebrates the children and staff of the hospital who change lives through their discovery and compassion.

Drew is being honored at the gala for her longstanding passion for helping children around the world.

FYI: Katy is wearing a Marchesa dress and Brian Atwood shoes. Drew is wearing an Elizabeth Kennedy dress. Katharine is wearing a Shoshanna dress.

20+ pictures inside of stars arriving at the gala…