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Lately, though, it seems like some alter egos have not been content to remain so alter. They've been getting their own shows, their own Twitter accounts and even hosting awards shows all by themselves.
In honor of these personas -- and what appears to be their impending world domination -- here's a list of our favorite pop alter egos.
Pop Alter-Egos: Stars' Not-So-Secret Identities
- Beyonce/Sasha Fierce
- Damon Albarn/Gorillaz
- Katy Perry/Kathy Beth Terry
- Justin Bieber/Shawty Mane
- Miley Cyrus/Hannah Montana
- Prince/Camille
- Lady Gaga/Jo Calderone
- Nicki Minaj/Roman Polanski
- Jem/Jerrica Benton
- The Beatles/Sgt. Pepper's Lonely Hearts Club Band
- 11 Things Rain Has Taught Us About Pop Music
- Rain Comes in Many Forms
- Rain Is a Bummer
- Rain Is Cleansing
- We Need Rain
- Rain Can be a Scapegoat
- It Comes in Colours
- Rain Is Not Permanent
- Rain Lets You Know Who Your True Friends Are
- Rain Is Caused by Dishonesty
- Rain Is Flammable
- Rain Is Caused by Heartbreak
- Top 10 Reality Show Musicians
- 10. Susan Boyle
- 9. Javier Colon
- 8. Rachel Crow
- 7. David Archuleta
- 6. Melanie Amaro
- 5. Scotty McCreery
- 4. Jennifer Hudson
- 3. Carrie Underwood
- 2. David Cook
- 1. Kelly Clarkson
- '90s and Early 2000s Top 40s Favorites
- Destiny's Child
- Britney Spears
- Backstreet Boys
- Mariah Carey
- TLC
- Christina Aguilera
- No Doubt
- Jennifer Lopez
- Missy Elliott
- *NSYNC
- P!nk
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