Rihanna, Megan Fox, 'House,' and 'Harry Potter' Among 2011's Top Facebook Pages

House, Harry Potter and Megan Fox were among the fastest growing Facebook pages in 2011.

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According to the social media site's "Memology 2011" lists, the Fox medical drama was the most-talked about show of the year and its protagonist, Dr. Gregory House, was the most discussed fictional character. Two and a Half Men and The Simpsons ranked No. 2 and No. 3, respectively.

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Transformers star Megan Fox topped the "actors and TV personalities" category, while Harry Potter took the No. 1 spot for movies.

Rihanna had the most popular following in 2011 among musicians and her "We Found Love" with Calvin Harris was the year's "most listened to songs."

Proving the site's worldwide appeal, Argentine soccer player Leo Messi topped all other athletes' Facebook pages while his team, FC Barcelona, was the most popular sports team.

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ACTORS & TV PERSONALITIES

1. Megan Fox
2. Vin Diesel
3. Adam Sandler
4. Selena Gomez
5. Will Smith
6. Taylor Lautner
7. Jackie Chan
8. Ashley Tisdale
9. DJ Pauly D
10. Kim Kardashian

MOVIES

1. Harry Potter
2. The Twilight Saga
3. Toy Story
4. Avatar
5. Jackass
6. Shrek
7. Saw
8. Pirates of the Caribbean
9. Fast & Furious
10. Titanic

TV SHOWS

1. House
2. Two and a Half Men
3. The Simpsons
4. Family Guy
5. South Park
6. Grey's Anatomy
7. SpongeBob Squarepants
8. CSI: Miami
9. iCarly
10. The Big Bang Theory

MUSICIANS

1. Rihanna
2. Bob Marley
3. Avril Lavigne
4. David Guetta
5. Enrique Iglesias
6. Usher
7. Lady Gaga
8. Metallica
9. Green Day
10. Black Eyed Peas

MOST LISTENED TO SONGS

1. We Found Love -- Rihanna and Calvin Harris
2. Last Friday Night (T.G.I.F.) -- Katy Perry
3. Sexy and I Know It -- LMFAO
4. Titanium -- David Guetta and Sia
5. First of the Year -- Skrillex
6. Scary Monsters and Nice Sprites -- Skrillex
7. Without You -- David Guetta and Usher
8. Stereo Hearts -- Gym Class Heroes featuring Adam Levine
9. Pumped Up Kicks -- Foster the People
10. Someone Like You -- Adele

ATHLETES

1. Leo Messi
2. Cristiano Ronaldo
3. John Cena
4. Ricardo Kaka
5. David Beckham
6. Michael Jordan
7. Sachin Tendulkar
8. Andres Iniesta
9. Kobe Bryant
10. Cesc Fabregas

SPORTS TEAMS

1. FC Barcelona
2. Real Madrid C.F.
3. Manchester United
4. L.A. Lakers
5. Chelsea Football Club
6. Liverpool Football Club
7. A.C. Milan
8. Arsenal
9. Galatasaray
10. Fenerbahce