Sienna Miller
Three months after chopping off her locks, the actress and her bob haircut make their red carpet debut.
Britney Spears
Ready for a new fall do, Brit chops her long blond tresses into a neat chin-length cut.
Zosia Mamet
The Girls star gives her bob a fresh asymmetrical trim, and lightens it up with a fresh platinum hue.
Maria Menounos
OK this really isn't a bob—defintely more of a lob. Still, the actress took off quite a few inches to achieve this shoulder-length haircut.
Chrissy Teigen
The latest addition to the bob haircut party? Chrissy Teigen! And oh do we love the Sports Illustrated model's long bob cut.
Demi Lovato
Just when we thought she'd stick with her lavender-silver ombré for a while, bam! Off with the silver ends, and in with the long bob.
Vanessa Hudgens
The latest addition to the ever-growing bob club: Vanessa! The Bongo model bid au revoir to long blond extensions in favor of a clean shoulder-length look.
Miranda Lambert
And the latest bob enthusiast is… Miranda! The country star shows off her chin-length chop at a party for her new album Platinum.
Emma Roberts
It's all about the hue for Roberts, who just revamped her blonde bob into a fresh new brunette shade.
Ashley Tisdale
Ash is on board with the summer bob trend! The actress debuted her "shattered" lob ahead of her upcoming nuptials.
Hayden Panettiere
The newly-pregnant actress looks thrilled about her shaggy new bob, courtesy of Jennifer Aniston's personal hairstylist Chris McMillan.
Mandy Moore
Much like her Tangled character Rapunzel, Moore chopped off her long locks for a "bad-ass" shorter do.
Minka Kelly
Right behind BFF Mandy Moore, the brunette beauty bid farewell to her long locks in favor a shorter style.
Hilary Duff
The newly single-mom trimmed her trademark hairstyle in for a sweet shoulder-length look.
Kaley Cuoco-Sweeting
Bang! No, we're not referring to her hit show The Big Bang Theory, we're talking about the newlywed's edgy new hairstyle.
Whitney Port
Just in time for her wedding, this bride-to-be chopped off a foot of hair for an almost-bob style.
Jennifer Lawrence
The actress has grown her pixie cut into a textured bob hairstyle.
Alyson Hannigan
The How I Met Your Mother star's new hairdo features a clean side part and slightly longer layers to frame her face. Its the perfect light and breezy update to her signature long locks.
Brandy Norwood
The singer and actress got a bob haircut and both she and her hairstylist, Jasmine Ashley, documented the transformation on Instagram. Brandy went from an asymmetrical shoulder length style to one that ends just past her chin.
Katy Perry
It appears the pop star's new bangs, which she debuted shortly after the Grammys, are here to stay. The fringe is now paired with a bob haircut that ends just above her shoulders.
Kelly Rowland
The singer and former X Factor judge debuted her shorter 'do at Opening Ceremony show during New York Fashion Week.
Jessica Alba
Celeb hairstylist Jen Atkins created the actress' new "fashion bob" which featured textured ends and a long front.
Kate Mara
Kate said au revoir to her shoulder-length locks and went for an edgier effect with this textured cut, which her hairstylist Mara Roszak debuted on Instagram.
Emma Roberts
The trend has reached the set of American Horror Story: Coven! Roberts showed off her tress transformation at the Women in Television celebration in Los Angeles.