Hailey Bieber Rings in Her 23rd Birthday With an Ab-Sculpting

Devoted to feeling the burn, the supermodel kicked off her 23rd birthday with a heart-pumping workout today in Los Angeles.

Hailey Bieber - News - IMDb

Hailey Bieber flaunts impressive figure while modeling swimsuits for athletic shoot in Miami Beach

Celebrity Beauty: Star Beauty Tips and Secrets, Page 39

Sexy Celebrity Swimsuit Photos

Hailey Baldwin Flashes Engagement Ring and Toned Abs During Date With Justin Bieber

Hailey Bieber Rings in Her 23rd Birthday With an Ab-Sculpting Workout

Celebrity Beauty: Star Beauty Tips and Secrets, Page 39

Pilates Fashion, News, Photos and Videos

Hailey Bieber's Style File - Every One Of Hailey Bieber's Most Stylish Outfits

All About Hailey Bieber's Sister Alaia Baldwin

Hailey Bieber puts on leggy display in an oversized T-shirt while stepping out solo in Beverly Hills

Victoria Beckham and Kim Kardashian West Are Fashion's Powerful New Friendship - Vogue Email Archive

Hailey Bieber Rings in Her 23rd Birthday With an Ab-Sculpting Workout

Celebrity Pilates Outfit Collection Store

Miley Cyrus seen leaving the Winsor Pilates class in West Hollywood Los Angeles, California - 10.07.12 Stock Photo - Alamy

Lori Harvey glistens wearing a sports bra and leggings after Pilates class in West Hollywood

Hailey bieber Ropa, Moda deportiva, Moda

Rumer Willis flashes her abs in a crop top and leggings as she