Lady Gaga Was Hiding a "Secret" Manicure Under Her Oscars Gloves (That Only Cost $9)

Constance Wu's hairstylist used Goldwell Kerasilk Smoothing Sleek Spray ($20) and Goldwell Kerasilk Style Fixing Effect Hairspray ($20) to hold her loose waves, while her nails were painted with Essie Gel Couture in Spiked with Style ($12).

Celebrity hairstylist John D used a cocktail of TreSemmé hair products for Amy Adams's mermaid curls, including Tres Two Extra Hold Mousse ($7), Compressed Micro Mist Hair Spray Hold Level 3 Boost ($5), and Tres Two Unscented Extra Hold Hair Spray ($5).

When Lady Gaga removed her gloves, she actually debuted Essie's Spring collection. On her nails was the pink-beige Essie Nail Polish in Stirring Secrets ($9), which manicurist Miho Okawara had topped with Essie Speed Setter ($15).

Prior to putting Letitia Wright's hair into an updo adorned with pearls, celebrity hairstylist Ursula Stephen said she applied Dove Style and Care Curls Defining Mousse ($5) from the roots to the tips in order to help protect Wright's hair.

Lucy Boynton's elegantly coiffed hairstyle was created with one-inch Velcro rollers and finished with Suave Professionals Firm Control Finishing Hairspray ($3).

Brie Larson's hairstylist for the evening, Bryce Scarlett, used Moroccanoil Dry Texture Spray ($11) to give her waves, while manicurist Ashlie Johnson painted her nails with OPI Nail Lacquer in Funny Bunny ($11).

Amandla Stenberg's skin was prepped with a series of Yes To products — the Coconut Energizing Coffee Eye Mask ($3), Yes To Cucumbers Cooling Under Eye De-Puffer ($9), and Yes To Cucumber Cooling Hydrating Primer Stick ($10).

Revlon brand ambassador Ashley Graham had on the brand's PhotoReady Candid Natural Finish Anti-Pollution Foundation in Medium Beige 270 ($10), PhotoReady Candid Anti-Oxidant Concealer in Biscuit 027 ($7), and the PhotoReady Candid Anti-Pollution Setting Powder ($7) to further perfect her complexion, as well as the ColorStay Cream Eye Shadow in Cognac ($7) and ColorStay Looks Book Eye Shadow Palette in Enigma ($9) swept across her lids.

Celebrity manicurist Emi Kudo painted Emma Stone's nails with OPI Infinite Shine in The Beige of Reason ($13).

The halo of butterflies around Maria Menounos's head was made by two Sincerely Jules by Scünci Metal Butterfly Headbands ($10 each).

Regina King's glamorous beauty look was also practical, as she wore KISS Lash Couture Naked Drama Collection in Tulle ($7) on her lashes.