The actress, who almost always rocks blonde hair in her day-to-day life, sported a curly dark brown wig during a skit while co-hosting The Tonight Show with Jimmy Fallon on June 24.

Scarlett Johansson showed fans what she'd look like with brown hair—and, spoiler, she looks so different. The actress, who almost always rocks blonde hair in her day-to-day life, sported a curly ...