Molly Sims has cut her hair off.

The 42-year-old model, who is known for her long blonde luscious locks, decided change up her look a little on Wednesday afternoon (09.09.15) by chopping her wavy 'do into an edgy lob, also known as a long bob, ahead of Rue La La's exclusive cotton collection launch in New York City.

Taking to her Instagram account before the drastic change, the stunner uploaded a photograph of her hairdresser Joey Maalouf holding a pair of scissors to her head while she made a scared expression with her face.

She captioned the hilarious shot: ''CUTTING IT All OFF!! #nervous #justdoit @joeymaalouf (sic).''

She then shared a snap of her chopped off highlighted hair lying in a pile on the floor, accompanied with the nerve-wracking caption: ''Oh sh**!!! I cut off my hair!''

However, despite teasing her fans with her vague shots throughout the afternoon, Molly later revealed the finished look as she posed for a close-up of her beautiful tresses.

Sharing a black-and-white image of her wavy lob, she wrote: ''LOVE IT #done,'' before showcasing the new look at the New York Fashion Week event just hours later.