Plot: #10 -- Jennifer Lopez: ""I'm Glad"" #09 -- Hilary Duff: ""Why Not"" #08 -- Eminem: ""Sing For The Moment"" #07 -- Stacie Orrico: ""Stuck"" #06 -- Justin Timberlake: ""Rock Your Body"" #05 -- Lillix: ""It's About Time"" #04 -- 50 Cent f/ Nate Dogg: ""21 Questions"" #03 -- Avril Lavigne: ""Losing Grip"" #02 -- Simple Plan: ""Addicted"" #01 -- Christina Aguilera: ""Fighter"" Lizzy Maguire herself Hilary Duff hosts today's TRL! She answers fans' questions, reveal her dream co-stars, and promoted her flick The Lizzy Maguire Movie.