The stunner is known for her hot body and close friendship with the Jenners and Hadids.
Maxim magazine has announced its list of Hot 100 World's Sexiest Women and they have an undisputed winner.
She's a 20-year-old model, who belongs to a family of popular Hollywood actors.
This beauty shot her first magazine cover in 2015 and made her first fashion week appearance the previous year.
While most models struggle to climb up the ranks, she's one of the lucky few to have achieved success in a short span.
A regular at the fashion weeks in New York, Milan, Paris and London, she's beat Gigi Hadid and Kendall Jenner to receive this honour.
Meet the world's sexiest woman...
She is the daughter of Alec Baldwin's brother, Stephen, who was an actor. At 19, she's bagged campaigns for Ralph Lauren, Topshop and French Connection.
Hailey's built an interesting resume for herself in the modelling world walking the runway for Moschino, Tommy Hilfiger and Sonia Rykiel.
Scroll down to see the other models who featured on the list.
The Sister Act
Photograph: Jason Merritt and Andreas Rentz/Getty Images
Click here to check out their childhood photos: From cute to HAWT: A model's childhood in pics
The duo have also started their clothing line Kendall + Kylie.
Photograph: Kind Courtesy Kendall and Kylie Jenner/Instagram
The Provocateur
She was crowned the 'World's Most Beautiful Woman' last year. Born to Irish parents Stella Maynes and Maurice Maxwell (who worked as a diplomat), Stella has lived all over the world because of her father's job.
Photograph: Kind Courtesy Stella Maxwell/InstagramThe Wild Ones
Photograph: Danny Moloshok/Reuters
This year at the MET Gala she chose to dunk herself in silver from head to toe and did not spare her hair too! Do we need to say more about her wild side?
Photograph: Anthony Harvey/Getty Images
The Sweethearts
Photograph: Kind courtesy Taylor Hill/Instagram
Photograph: Andreas Rentz/Getty Images
Photograph: Andreas Rentz/Getty Images
The Multi-hyphenates
There was a time when American model Ashley Graham was body shamed for not having the 'perfect' body. But today, she can easily put skinny models to shame with her success.
Photograph: Frazer Harrison/Getty Images
Photograph: Kevork Djansezian/Getty Images
She's often criticised for her stick-thin figure, but she's still a head turner.
Photograph: Pascal Le Segretain/Getty Images
The Old Favourites
Photograph: Kind courtesy Alessandra Ambrosio/Instagram
Photograph: Antony Jones/Getty Images
Now a mother to two children, Adriana, one of the oldest VS models, has made all the right moves in her career.
Photograph: Pascal Le Segretain/Getty Images
Photograph: Kind Courtesy Victoria's Secret Swim Catalogue 2013
She stars in the upcoming film Wonder Woman. Looks like she's all set to inch her career into Hollywood. Wonder if that will be as successful as her modelling career?
Photograph: Andreas Rentz/Getty Images
Photograph: Jamie McCarthy/Getty Images
Photograph: Kind courtesy Irina Shayk/Instagram