It's the battle of the blonde bombshells as Gigi Hadid is hot on the heels of Kate Upton's coveted career.
Upton has been making waves in the fashion industry since she first debuted on the scene in 2011.
And after paving the path on the catwalk for fellow 'curvy' models, her first real contender has emerged in the form of 19-year-old Gigi.
The girlfriend of American tween singer Cody Simpson, she already has a mainstream following among her other half's fanbase.
While Kate Upton is the hottest model of the moment, a title she shares with couture darling Cara Delevingne.
She's landed the cover of the Sports Illustrated Swimsuit Issue for a record breaking three consecutive years, landed campaigns with Guess, Beach Bunny and now she's transitioning into an acting career.
Sports Illustrated Swimsuit features: 2014
Social media followers: Instagram - 628,966; Twitter - 121,000
Campaigns: Guess, Tom Ford
Sports Illustrated Swimsuit features: Rookie of the Year 2011, Cover in 2012, 2013 and 2014
Social media followers: Instagram - 1,099151; Twitter - 1.46m
Campaigns: Guess, Beach Bunny, Express, Bobbi Brown,