JBL True Summer kicked off in Santa Monica, California on Thursday night with the goal of bringing back 'True Summer vibes' through live music following the COVID-19 pandemic.
And Amelia Gray Hamlin attended the VIP-only concert and walked the pre-show red carpet with her older sister Delilah.
The 20-year-old model brought her signature smolder in a plunging black halter top and a pair of eye-popping green trousers.
VIP: Amelia Hamlin attended the attended the VIP-only JBL True Summer concert event in Santa Monica, California on Thursday night
She had a chainlink purse, featuring the same shade of green, tucked under arm as she struck poses.
The girlfriend of Scott Disick also modeled a pair of unique leopard print stilettos with metallic green straps.
She wore her lengthy brunette hair in loose waves stemming from a neat middle part.
Delilah, 22, bared her enviably toned midriff in a white racer back tank top and a pair of blue suede trousers.
Sister act: The 20-year-old model was joined by her stunning older sister Delilah
Signature style: Amelia brought her signature smolder in a plunging black halter top and a pair of eye-popping green trousers
The eldest daughter of Lisa Rinna and Harry Hamlin layered several chains around her neck and styled her long blonde strands in beachy waves.
The sisters cozied up on the red carpet, wrapping their arms around one another for one shot.
Selling Sunset's Heather Rae Young slipped her famously fit physique into a fitted pastel mini dress with long sleeves and visible boning on the bodice.
Stunning: The eldest daughter of Lisa Rinna and Harry Hamlin layered several chains around her neck and styled her long blonde strands in beachy waves
Wow! Selling Sunset's Heather Rae Young slipped her famously fit physique into a fitted pastel mini dress with long sleeves and visible boning on the bodice
The 33-year-old reality star was joined by her fiance and the co-host of Flip or Flop, Tarek El Moussa.
The engaged pair looked very much in love, often posing close for snapshots on the red carpet.
Heather's bright blonde hair was partially braided and then styled into a flowing ponytail that cascaded down her back.
In good company: The 33-year-old reality star was joined by her fiance and the co-host of Flip or Flop, Tarek El Moussa
She completed the look with some white strappy heels that exposed her bright pedicure.
Lizzo showed up in support of her DJ pal Sophia Eris who was one of the highly-anticipated performers at Thursday night's event.
The 33-year-old Grammy Award-winner rocked a bold pink wig
