Holland Roden, Rowan Blanchard, Dakota Johnson
(left to right) Holland Roden, Rowan Blanchard and Dakota Johnson at the Vanity Fair and L'Oreal Paris Toast to Young Hollywood event. Getty Images

The Vanity Fair and L'Oreal Paris Toast to Young Hollywood was hosted Tuesday by Dakota Johnson and Krista Smith at Delilah in West Hollywood.

The event was thrown in support of the Roar Foundation Shambala Reserve, a foundation established by host Dakota’s grandmother, Tippi Hedren, to provide sanctuary to exotic felines who have suffered from gross mistreatment and neglect.

Guests included Riz Ahmed, Rowan Blanchard, Madeline Brewer, Dove Cameron, Reeve Carney, Emmanuelle Chiriqui, Amanda Crew, Poppy Delevingne, Nathalie Emmanuel, Erin Foster, Sara Foster, Eiza Gonzalez, Kat Graham, Grace Gummer, Colton Haynes, Lydia Hearst, Victoria Justice, Ashley Madekwe, Shay Mitchell, Jason Ritter, Naya Rivera, Holland Roden, Patrick Schwarzenegger, Serayah, Yara Shahidi, Zelda Williams, Scout Willis, Rumer Willis, Ariel Winter and more.

Check out who were thought were the best dressed of the night in the slideshow above.

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Rowan Blanchard
Actress Rowan Blanchard, 15, wore a fun  Giambattista Valli Couture look which included a romantic pink crop-top with voluminous sleeves and red satin pants, styled with Nicholas Kirkwood Zaha Sandal in silver and an Edie Parker Jean magnetic clutch in red pearlescent.  Emma McIntyre/Getty Images
Dakota Johnson
Dakota Johnson co-hosted the party in a long black lace Dior Pre-Fall 2017 dress.  Charley Gallay/Getty Images
Holland Roden
Holland Roden rocked a navy cold-shoulder by Johnny Winter 2017 dress featuring bows down the sleeves.  Emma McIntyre/Getty Images
Yara Shahidi
"Black-ish" star Yara Shahidi looked fresh and fabulous in a mix-print Chanel Resort 2017 ensemble, including a topical top and striped wide-leg pants.  Emma McIntyre/Getty Images
Cara Santana, Jesse Metcalfe
Cara Santana attended event alongside fiancé Jesse Metcalfe and looked stunning wearing a sleeveless teal abstract velvet burnout shift dress from Rubin Singer’s Fall/Winter 2016 ready-to-wear collection.  Emma McIntyre/Getty Images
Ashley Madekwe
"Revenge" star Ashley Madekwe wore a fun Johanna Ortiz Resort 2017 print two-piece outfit.   Emma McIntyre/Getty Images
Annalise Basso
Annalise Basso accessorized her embesllished midnight blue cocktail dress with a pair of diamond, drop earrings along with a silver pave ring from Montblanc and an Emm KuocJoa clutch.  Emma McIntyre/Getty Images
Normani Kordei
Fifth Harmony's Normani Kordei accessorized her tri-color lace dress with black ankle-tie sandals and jewels from the Swarovski Spring/Summer 2017 Collection, including the Crystal Wishes Star pierced earring set and Attract Triangle earrings with jacket Emma McIntyre/Getty Images
Maddie Ziegler
Maddie Ziegler accessorized her black embellished dress with Loeffler Randall Arielle Ankle Wrap Star Sandal in black suede and Edie Parker Fionna clutch in black with gold glitter facet detail.  Emma McIntyre
Dakota Johnson