If there’s one girl whose hair we’ll lust over, it’s the locks of Sienna Miller. In honor of her birthday, we’ve rounded up some of our favorite hair looks from her over the years, including her new short bob with bangs! Though iconic for her boho style, she’s proven quite experimental with her mane over the years. Last year she wore a spiked headband to the MET Ball, this year she rocked strawberry locks in the spring, and her hair just seemed to get shorter and shorter as we approached winter. We loved her mid-length cut with the hair flip, but she shocked us even more just days before her 33rd birthday with a new blunt bob with bangs! So tell us, what do you think of Sienna Miller’s new short cut? She’s definitely not the first celeb to cut her long locks this year. Is this the new trend for 2015?