Season 6

#10 -- TLC: ""Hands Up"" #09 -- Mariah Carey f/ Cam'ron: ""Boy (I Need You)"" #08 -- Kelly Rowland: ""Can't Nobody"" #07 -- Shakira: ""The One"" #06 -- Simple Plan: ""Addicted"" #05 -- JC Chasez: ""Blowin' Me Up (With Her Love)"" #04 -- Christina Aguilera: ""Beautiful"" #03 -- Good Charlotte: ""The Anthem"" #02 -- Jennifer Lopez f/ LL Cool J: ""All I Have"" #01 -- 50 Cent: ""In Da Club"" Today's episode is star-struck. No Doubt, Jay-Z, the cast of Old School, and the Osbourne Offsprings were in the house! No Doubt and Jay-Z visit to talk about the forthcoming Grammy Awards. Luke Wilson, Vince Vaughn, and Will Farrell talk about their movie Old School now in theatres. And Jack & Kelly Osbourne promote the DVD release of The Osbournes first season.

#10 -- Kelly Rowland: ""Can't Nobody"" #09 -- JC Chasez: ""Blowin' Me Up (With Her Love)"" #08 -- TLC: ""Hands Up"" #07 -- Shakira: ""The One"" #06 -- Simple Plan: ""Addicted"" #05 -- Christina Aguilera: ""Beautiful"" #04 -- Justin Timberlake: ""Rock Your Body"" #03 -- Jennifer Lopez f/ LL Cool J: ""All I Have"" #02 -- Good Charlotte: ""The Anthem"" #01 -- 50 Cent: ""In Da Club"" 50 Cent returns to make the 2nd of his double appearance! He talked about his celebration for his record-breaking album Get Rich Or Die Tryin' and said he would like to collaborate with Limp Bizkit! Also he stuck around with Damien to answer some questions.

#10 -- Kelly Rowland: ""Can't Nobody"" #09 -- No Doubt: ""Running"" #08 -- JC Chasez: ""Blowin' Me Up (With Her Love)"" #07 -- Simple Plan: ""Addicted"" #06 -- Shakira: ""The One"" #05 -- Jennifer Lopez f/ LL Cool J: ""All I Have"" #04 -- Justin Timberlake: ""Rock Your Body"" #03 -- Good Charlotte: ""The Anthem"" #02 -- Eminem: ""Sing For The Moment"" #01 -- 50 Cent: ""In Da Club"" Newcomers All-American Rejects stop by the TRL studio for the first time and give a lucky fan two tickets to their concert. Coming all the way from Russia to Times Square is Russian duo t.A.T.u. to answer some questions and pulled off a sub-contraversial performance of their current single ""All The Things She Said""!

#10 -- Busta Rhymes f/ Mariah Carey: ""I Know What You Want"" #09 -- Amanda Perez: ""Angel"" #08 -- B2K: ""Girlfriend"" #07 -- Jennifer Lopez: ""I'm Glad"" #06 -- Eminem: ""Sing For The Moment"" #05 -- Nelly: ""Pimp Juice"" #04 -- Justin Timberlake: ""Rock Your Body"" #03 -- Avril Lavigne: ""Losing Grip"" #02 -- Simple Plan: ""Addicted"" #01 -- Christina Aguilera: ""Fighter"" Today's episode kicks off TRL High School Week! Clifton High School were today's audience. Also, Nick Cannon co-hosted the entire show. And we get a peak of High School photos of your favorite celebrities during the videos! It's that time of the week again, American Idol Monday! Rickey Smith, the most recent contestant to be booted off, visited the TRL studio to talk about his experience and dishes out the dirt inside the AI mansion! 50 Cent stops by to premiere his new video ""21 Questions""! He also talks about his beef with Ja Rule and interviewed a Clifton High School newspaper editor. Also, TRL showed a clip of K

#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.

#10 -- Lillix: ""It's About Time"" #09 -- Nelly & P. Diddy f/ Murphy Lee: ""Shake Ya Tailfeather"" #08 -- Mya: ""My Love Is Like...Woah"" #07 -- Ashanti: ""Rock Wit U (Awww Baby)"" #06 -- Michelle Branch: ""Are You Happy Now"" #05 -- Ruben Studdard: ""Flying Without Wings"" #04 -- Kelly Clarkson: ""Miss Independent"" #03 -- Christina Aguilera f/ Lil' Kim: ""Can't Hold Us Down"" #02 -- Good Charlotte: ""Girls & Boys"" #01 -- Beyonce f/ Jay-Z: ""Crazy In Love"" Singer Jessica Simpson visited the MTV beachhouse to talk about her upcoming album In The Skin, and her (along with husband Nick Lachey of 98 Degrees) new MTV reality show Newlywed. Later on the show, it was Simpson vs Simpson when Jessica and sister Ashlee (current MTV VJ) revealed personal secrets about each other!