Season 1, Episode 34 MTV 10 on Top
First Aired: February 5, 2011
Katy Perry, Justin Bieber and the cast of "Glee" are interviewed.
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- Premiered: May 1, 2010
- Rating: TV-PG
- Premise: A countdown of the most talked-about celebrities of the week. (more)
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A lot has changed in 20 years.