Credit:; Alo Ceballos/FilmMagic

Ali Lohan has a new, cleaned-up look: a cute, shoulder-grazing bob haircut!

On Sunday, the model hit up NYC's Soho neighborhood for a shopping trip with big sis Lindsay Lohan, who hosted Saturday Night Live the evening before.

Clad in dark skinny jeans, short leather boots and a leather jacket, the 18-year-old appeared to have lopped off several inches of her brunette hair, which used to reach the middle of her back.

In December, the teen faced scrutiny over her rail-thin figure, which she emphasized in short, ill-fitting rompers, short, cut-off shorts and midriff-baring tank tops.