Billie Eilish returned to Instagram this week with a new look: a shoulder-length, strawberry blonde bob with choppy layers, shown off in a mirror selfie posted October 5. It's a dramatic shift from the long, dark brown hair she'd worn since earlier this year, and her first time back to blonde since she ditched her signature acid-green roots for platinum hair during the "Happier Than Ever" album cycle in 2021, according to Yahoo Entertainment.

The post marked Eilish's first social media update in roughly two months. In the time since her last post, she officiated the wedding of her older brother and longtime collaborator Finneas to Claudia Sulewski at San Ysidro Ranch in Montecito, California.

Fans quickly flooded the comments, with many noting the new cut and color drew even more comparisons to Finneas than usual. The transformation racked up comments and shares within hours of going up, continuing Eilish's pattern of setting off a social-media frenzy every time she switches up her hair.