Definition
This idiom suggests that any form of publicity, even negative, is better than no publicity at all, as it keeps the subject in the public eye.
The restaurant received terrible reviews, but they figured 'any publicity is good publicity,' and they've been packed ever since.
Despite the negative reviews, the studio believed that 'any publicity is good publicity' and pushed forward with social media promotions.
The politician said, 'any publicity is good publicity,' so he wasn't too bothered by the controversial news coverage.