'Mean Girls' Cast Reacts to Surprise Original Cast Member Cameo

The cast of 'Mean Girls' chats with ET’s Denny Directo about the film, in theaters now, and the surprise OG cast member cameo. Tina Fey explains how it all came together while the new cast, including Angourie Rice, Auliʻi Cravalho and Reneé Rapp, react to seeing one of their faves in the movie.