16. BEST: Elle MacPherson hit the streets of London like the catwalk, wearing acid wash motorcycle leggings with a grey cashmere sweater and Christian Louboutin Lucifer heels. 18. WORST: Steven Tyler and Randy Jackson hit the American Idol PaleyFest in equally tacky threads. While the Aerosmith frontman sported leopard jeans, Jackson got scarved in psychedelic style.