Billie Eilish put on a casual show at the launch of Lollapalooza in Santiago, Chile on Friday.
The 21-year-old singer wore a beanie and an oversized graphic tee layered over a long-sleeved top as she took the stage to perform some of her best-loved hits at the music festival.
The Happier Than Ever hitmaker also wore a pair of basketball shorts over light blue star-embellished leggings.
The young musician, who is set to make her acting debut in Donald Glover’s psychological thriller series Swarm, sports a variety of quirky silver jewellery.
Lil Nas X, 23, was a head turner as he also headlined the first night of the three-day festival, and Kali Uchis, 28 – who fronted the line-up – made an eye-catching appearance.
Casual outfit: Billie Eilish, 21, looked casual as she launched Lollapalooza in Santiago, Chile on Friday
Layering: The singer wore a beanie and an oversized graphic tee, which she wore over a long-sleeved top, as she took the stage to perform some of her best-loved hits at the music festival
Star studded: The Happier Than Ever hitmaker also wore a pair of basketball shorts over light blue star-studded leggings
For her performance, she opted for a bold and edgy look with contrasting red and blue colors.
Eilish donned a white racing graphic t-shirt over a red nylon jacket with white and blue stripes down the sleeves.
To match the royal blue detailing in her top, she wore a pair of shiny blue leggings with white stars.
The seven-time Grammy winner wore a pair of dark basketball shorts over the leggings.
The talented songwriter wore fingerless gloves reclaimed from the cuffs of a pair of white Nike socks.
Eilish styled her jet black bangs and locks in a casual straight hairstyle under a black beanie with blue flame detailing.
To stomp across the stage, she donned a pair of red and blue Jordan sneakers.
For jewelry, she opted for a variety of chunky silver chains around her neck, as well as statement rings on each of her fingers.
She also wore a pair of fancy silver hoop earrings peeking out from under her raven hair.
Eilish opted for minimal makeup while performing to show off her natural beauty.
She looked radiant in pink blush and bare lips.
Another headline act was Lil Nas X, who made his grand entrance in a dramatically and intricately beaded fringe dress.
Silver statement: The young musician, who will make her acting debut in Donald Glover’s psychological thriller series “Swarm”, is equipped with a multitude of unusual silver jewellery
Grand entrance: Another of the two headlines was Lil Nas X – who made her grand entrance in a dramatically and intricately beaded fringe dress
Dazzling: The Montero singer and rapper then ditched the stunning garment to reveal a dazzling white crop top paired with baggy, iridescent trousers
Stunning: Uchis wore a white beaded bustier top and matching leather micro skirt with fringe details
Monochrome: The Colombian-American songwriter completed her look with a pair of white over-the-knee boots and styled her long, cascading locks in a high ponytail
Performing her new tracks: She recently released her third studio album Red Moon In Venus on March 3rd
The Montero singer and rapper then ditched the stunning garment to reveal a blinding white crop top paired with baggy, shimmering pants.
His backup dancers matched his all-white ensemble in form-fitting bodysuits with various revealing circular necklines and furry knee-high boots.
Uchis – who recently released her third studio album Red Moon In Venus on March 3 – wore a white beaded bustier top and matching leather micro skirt with fringe detailing.
The Colombian-American songwriter completed her look with a pair of white thigh high boots and styled her long, cascading locks in a high ponytail.