Remember when Zoë Kravitz was blonde?!Jaws dropped when Emma Stone arrived at the 2025 Golden Globes with a pixie cut.Credit: Getty ImagesThe GistIt can be scary to undergo a big hair transformation, but celebs do it all the time.From Billie Eilish's blonde bob to Joey King's pixie cut, our favorite Hollywood stars continue to surprise us on the red carpet.We've all had that moment when we think to ourselves, "What if I completely switch it up?"…