Simply frightful!

Andy Johnson, above, arrives dressed as Dr. Frankenstein at the West Hollywood Halloween Carnaval on Tuesday night. At right, 3-year-old partygoer Ava Ruggiero meets a wild-eyed Jennifer Friel at the event, which filled the streets with thousands of costumed revelers. Tiffany, a teen pop singer in the 1980s who later became a Playboy cover girl, was to be crowned honorary mayor and presented with the keys to the city.