“90210″ star Shenae Grimes, “Mean Girls” alum Daniel Franzese, actress Amanda Bynes and fellow thespian Blake Lee believed there was strength in numbers as the foursome prepared to take on Universal Studios Hollywood’s Halloween Horror Nights. Following in the footsteps of other celebrities, such as Elizabeth Taylor and Alec Baldwin, the group became the latest on the list of celebrities to brave the theme park’s frightening annual event. This past weekend, “90210″ star Shenae Grimes, “Mean Girls” alum Daniel Franzese, actress Amanda Bynes and fellow thespian Blake Lee visited Universal Studios Hollywood’s Halloween Horror Nights. Stay tuned to Shockya.com for the latest from Halloween Horror Nights 2009. (Source: Universal Studios,…