Halsey, 24, took the stage at the event and performed a few of her biggest hits.
The singer looked chic and fashionable in a basic black tee that she tucked into a pair of black mini shorts. She completed her look with a sparkly blazer, sheer black tights and over-the-knee heeled boots. Halsey had her short locks colored bright pink.
Nicky and her mother, Kathy Hilton, also made a stop at the event. Kathy looked sleek in a black monochromatic outfit, which consisted of a velvet blazer and pants and black flats.
Nicky, 35, looked stunning an off-white and gold striped mini dress, which featured a pleated skirt button and long sleeves. The blonde paired her look with classic nude heels and kept her locks pulled back into a loose bun.
Lupita Nyong'o was all smiles in a dark grey and white striped turtleneck dress. The Kenyan-Mexican actress added black velvet heels and rocked a bold red lip.
Whose outfit from the event did you like best? Let us know in the comments below!