Kerry went from a Rufio and Rick James mashup to a silver rocker fox. Speaking as somebody who has tried to pull off that look, Southeast Asians really shouldn't go for that mustache. It makes you look like a sex offender. Older Kerry rocking out during the Samurai reunion was something else. I can understand why he's such a famous star everybody lusted after.
My in-universe explanation is that rich Kerry had stylists who knew what to do with him.