Micaela Erlanger

Why she matters: Erlanger styles seven Oscar winners, including triple winner Streep, 66. After helping put Nyong'o, 33, on the map in 2014, the N.Y.-based stylist continues to position new faces like Star Wars: The Force Awakens' Boyega, 23, and Wonder Woman's Gal Gadot, 30, while keeping her A-list stable up front in the style conversation.

Top look: Nyong'o shut down Cannes in an emerald Gucci gown and a vintage headband (reminiscent of the Fred Leighton one she wore when she won her 2014 Oscar). "Lupita brought that gown to life; everything was magical," recalls Erlanger of the look that created a social media frenzy — heightened by Nyong'o's full doughnut bun that earned its own hashtag #Fronut. Equally epic was Jared Leto's black Gucci tux with red piping, accessorized with a silk flower and velvet crystal snake slippers on Oscar night. Extra points? Leto brought the hot label's creative director Alessandro Michele as his plus-one.

Red-carpet risks: Both Nyong'o's ZAC Zac Posen (with 500 LED lights coded by 30 girls from the Made With Code program) for a Daily Show appearance and Boyega's three-piece purple Versace tux that he wore with a glove at Star Wars' L.A. premiere were outside the box. And Streep, 66, surprised fans when she rocked a sheer polka dot jumpsuit with cutouts on The Tonight Show With Jimmy Fallon. "Meryl joined the #BalmainArmy," laughs Erlanger, a Parsons alum.