Who is parodied in the 123rd South Park episode named "Stupid Spoiled Whore Video Playset", and also proclaimed "New York's leading girl", in 2001? 
Stupid Spoiled Whore Video Playset:  The episode parodies Paris Hilton. Paris Hilton: Paris Whitney Hilton (born February 17, 1981) is an American businesswoman, socialite, television and media personality, model, actress, singer, and DJ. Paris Hilton:  Her lifestyle and rumored short-lived relationships made her a feature of entertainment news and tabloid magazines, and Hilton was proclaimed "New York's leading It girl" in 2001.
Paris Whitney Hilton (born February 17, 1981) is an American businesswoman, socialite, television and media personality, model, actress, singer, and DJ.