Alfonso Ribeiro: He's No Will Smith!

11/16/2007 2:37 PM PST BY TMZ STAFF
Alfonso Ribeiro was leaving Hyde last night, when a fan asked to take a picture with him. Watch the fan's reaction to Alfonso's strange response! No, it wasn't the Carlton dance!

As Alfonso finally got into his car, the annoyed fan yelled, "You're not Will Smith!" What gave that away?