She may be Stephen Baldwin's daughter and Kylie Jenner's latest selfie friend, but it is no surprise that Hailey is a successful model in her own right.
The stunner kept things very glamorous but simple at The Fault in Our Stars premiere. She opted for neutral tones - a fitted white jumpsuit and nude shoes, keeping her blonde bob relaxed and wavy with barely there makeup.
The young star's fashion career is clearly in bloom and at 17 she's already signed with elite modelling agency Ford Models.
With brands such as Topshop and ZARA already fans, Hailey's definitely one to keep an eye on this year.