Jessica Simpson, Kanye West and Kylie Minogue helped New Yorkers ring in the holidays on Thursday (25Nov10) when they performed on floats in the annual MACy's Thanksgiving Day Parade. They were joined by the casts of the Broadway musicals Memphis and Elf, comedian Jimmy Fallon with The Roots, folk singer Arlo Guthrie and R&B star Keri Hilson, who performed on the My Princess Academy float.