Mark-Paul Gosselaar, Tyson Beckford here for Kiehl's AIDS event

You can catch model Tyson Beckford and Mark-Paul Gosselaar, who now stars in TNT's "Franklin & Bash," but will forever be known as Zack Morris of "Saved by the Bell," outside Kiehl's (18th & Walnut) on Aug. 1. They are just two of the motorcycle riders in Kiehl's LifeRide for amfAR.