Kelly Rowland, Chrissy Teigen, Jennifer Garner and more stars also wowed at the charity event.
The 'Modern Family' star praised her on-screen daughter's romance with the 'Bachelorette' star at Saturday's Baby2Baby Gala, presented by Paul Mitchell.
The 43-year-old actress also dished on one of her favorite hobbies.
The 45-year-old actress came forward last month with allegations of sexual harassment against the producer.
The actress and her boyfriend, Brad Falchuk, raised the bar for couples costumes over the weekend.
The 47-year-old actor spoke out about the alleged incident on 'Good Morning America,' alongside his 'Suburbicon' co-star George Clooney.
In an earlier statement, the 47-year-old actor claimed he was not aware of the movie mogul's alleged mistreatment of women.
The Oscar winner's mom is firing back after a writer for the New York Times criticized Paltrow for continuing to work with the movie producer.
"I hope that this is the point of no return where change will occur, not only in our industry but also others."
The 45-year-old actress is one of several A-listers who have accused Weinstein of sexual harassment.
A source tells ET 'Brad's actions speak louder than any words.'
Paltrow recounted an encounter with the producer when she was 22 years old, and says she was 'expected to keep the secret.'
The 44-year-old actress tells it like it is!
Paltrow visited ‘The Late Late Show’ on Monday night.
