Terry Fator is the most amazing ventriloquist. In this clip he performs with one of his puppets: Winston the Impersonating tartaruga who sings What a Wonderful World as Kermit the Frog
Obviously Hasselhoff and Piers loved the act - brandy did not. Most of the amusement from this video is of brandy and the men fighting over the buzzers (Brandy is trying to stop the act).
Corina performs "Knocking on Heaven's Door" on a harp for her semi-final performance. Piers and Hasselhoff like the performance mainly because she's beautiful.