Hailey Bieber made her presence felt at the Coachella fairground on Day Two, hours before her husband Justin Bieber is scheduled to deliver a headline set.

The 29-year-old niece of Alec Baldwin - who was spotted hanging out with BFF Kendall Jenner during the festivities - wowed in a sultry selfie as she flaunted her toned midriff in a skimpy yellow thong with a blue trim. 

The model also showed her support for the music artist by donning a cropped shirt that had 'Future Mrs. Bieber' printed on the front.

Her locks were partially covered with a black cap and she held a small camera in her hand as she snapped the quick picture which was uploaded to her Instagram stories. 

Also on Saturday, the mom-of-one was hard at work at the festival, manning the invite only pop-up for her beauty brand Rhode.

She opted for a springtime chic canary yellow minidress with splatter-print purple trim, with a bias cut neckline serving up a generous helping of cleavage.

Sharpening her unmistakable features with makeup, she let her caramel locks tumble in silken curtains to emphasize her glowing complexion.

Standing at a Rhode World booth, she grinned and flashed a thumbs up for an Instagram photo taken by her company's president Lauren Ratner.

Among the invited guests at Rhode World was none other than Brazilian model Marianne Fonseca, the new wife of The Chainsmokers' Drew Taggart.

She affectionately uploaded pictures not only of herself but also of Hailey, gushing: 'Linda de viver,' calling her beautiful in Portuguese.

Kylie Jenner, despite having her own cosmetics empire, graciously showed fans she was perusing the display by the South Korean skincare brand Medicube.

Meanwhile Kourtney Kardashian made sure to sneak in a plug for the items from her wellness brand Poosh available at the Instacart display.

Becky G made her presence felt at the Interscope and Capitol Records party that day, flaunting her chiseled abs in an: 'I love you,' crop top.

She modeled a trendily flowy set of brown cutoff jeans with acid-wash fading and some paint playfully splashed across the denim.

Slinging a burnt-orange handbag over her shoulders, she brought the look together with shades, a couple of beaded necklaces and a set of desert chic boots. 

Natalie Jane could be spotted at the same fete in a frilly pink tiered skirt and a matching bandeau top with a plunging neckline to show off her cross.

KATSEYE stars Sophia Laforteza, Yoonchai, Daniela Avanzini, Megan Skiendiel and Lara Raj also made their way to the glittering extravaganza.

The girl group, who had played Coachella the previous evening, squeezed in a bit of hobnobbing with Apple Music presenter Zane Lowe.

Baby Powder singer Jenevieve exuded her signature cool in a loose-fitted white sweater and baggy jeans worn with gleaming shades. 

Songstress Ebony Riley jazzed up her simple crop top and jeans with such accoutrements as a print bandanna and a belly chain.

Holly Humberstone meanwhile opted for a full-length Little House on the Prairie chic frock with lace trim and a mesh decolletage. 

Heidi Klum was also in attendance on day two of the music festival - and looked unrecognizable as she strolled through the crowded grounds. 

The German-American supermodel wore a long black wig as well as a semi-sheer, ivory dress.

She donned a pair of skimpy black bottoms underneath and slipped into a pair of sheer tights as well as black cowboy boots with a white pattern. 

Klum completed her look by carrying a mini black purse and accessorized with a pair of reflective shades as well as a chunky necklace. 

The star uploaded a clip to her main Instagram page as she walked through a grassy area and turned around for the camera to better show off her edgy outfit. 

Lizzo also celebrated Coachella Day 2 as she spent time outdoors underneath the warm sunshine. 

She appeared to be attending an event and spent time near pink cabanas in a hot pink satin dress. 

The Truth Hurts songstress opted for a halter-styled bikini top underneath and slipped into black boots. 

Lizzo flaunted her 60lb weight loss as she showcased her dance moves while grooving towards the camera.

Her makeup was glammed up for the day and comprised of a warm blush to her cheekbones as well as a neon green shadow around her eyes.