Minnie Mouse made her movie debut in the 1928 film "Steamboat Willie," and her co-star and beau Mickey Mouse got his bronze plaque on Hollywood Boulevard back in 1978.
But it took another 40 years for Minnie, who appeared in more than 70 animated movies, to join him on the Walk of Fame.
"In true Hollywood fashion, she delivered a memorable performance but Mickey got all the credit," Walt Disney Co Chief Executive Bob Iger said at the ceremony unveiling the 2,627th star.
"After 90 years in show business, it's certainly about time you got your star," Iger said.
Minnie has been celebrated as a fashion icon, pop culture staple and a character who brings joy to children worldwide, and an actor dressed as the cartoon character waved and batted her eyelashes throughout Monday's ceremony.
"This is the best day ever. Thank you, thank you, thank you," she squeaked from the red and white polka dot stage.
Pop star Katy Perry, also dressed in red and white polka dots for the occasion, said she had been a fan of Minnie since the age of two or three.
"Minnie and Mickey printed diapers - that was my first memory ever and it turned into a lifelong devotion," the "Firework" singer said.
"No one rocks a bow, or the color red, quite like her," Perry added.
Walk of Fame honorees are selected by the Hollywood Chamber of Commerce.
Women have stepped up their campaign in recent years for equal pay in Hollywood and better representation behind and in front of the camera.
It took Minnie much longer than her boyfriend to receive Monday's accolade because Disney only nominated her last year, Walk of Fame producer Ana Martinez told the Thomson Reuters Foundation.
"Maybe he was more popular back in the day," Martinez said.
Donald Duck, Tinker Bell, Snow White and other Disney characters were immortalized on the Walk of Fame before Minnie.