The Australian actress was in NY earlier this week to attend Glamour's 2017 Women of The Year Awards.
Gigi Hadid may seem like she's got it all together - she walks runways all around the world, partners with brands like Maybelline and Tommy Hilfiger regularly, and has an impossibly chic Instagram feed.
During her touching tribute to her model pal, Williams, 36, said, "Gigi, you are one of the few people on this planet I would leave my baby for - for one night - but for you, it shows how much you mean to me".
"One of the first things I learned in my work with UN Women to support women survivors of violence is how critical the solidarity of others is".
During her acceptance speech, Nicole called her husband Keith Urban, who was in the audience, "a truly good man", and said how lucky she was to grow up in a loving family and be a mother to "four loving children", before calling for people to support each other to enact change.
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David Spade hilariously pointed out, "You got some haters", to Kimmel , of course pronouncing it "hay-tahs". A raging Twitter spat between the pair soon followed, which resulted in Kanye later deleting his tweets.
"The feeling that they are not alone". So let's speak out. "And I want you to imagine the effect you have on the world".
"It's about building bridges".
What do you think of Nicole's latest look? "Bridges bring understanding, they bring empathy, but they bring change, and that's what we need, we need change".
The 22-year-old fashion model - who is dating former One Direction star Zayn Malik - received the Woman of the Year prize at the Glamour Women of the Year Awards at the Kings Theatre in Brooklyn on Monday, and Gigi used her acceptance speech to say that just because she appears to have a flawless life, she still suffers the same self-doubts as other people.