Think young. Shave head. Run an ad firm. (Gyro Worldwide president Steven Grasse)(Advertising, Marketing & Media)(Company Profile)

In a business where image is everything, Steven Grasse decided he had to do something about his thinning hair. Rather than reach for the Rogaine, he grabbed a razor.

"I was becoming follicle-ly challenged," said Grasse, president of Gyro Worldwide, the Society Hill advertising agency specializing in youth culture.

Such politically correct jargon is rare coming from Grasse, the self-proclaimed arbiter of what is hip who put his agency on the map with shocking creative advertising, such as the campaign that featured mass murderers Jeffrey Dahmer and Charles Manson.

Could this be a sign that Grasse, two months shy of 32 and still sporting the cueball head, is growing up?

Don't bet on it. Even if Gyro's roster of clients is looking more PC - Pepsico Inc., R.J. Reynolds Tobacco Co. and …