Top 10 Songs of 2012 - based on Billboard Hot 100

The rankings of the Top 10 songs of 2012 are from the most popular singles in any genre according to Billboard Hot 100. Billboard is a USA weekly music magazine that is internationally circulated. With its first issue since1894, it is one of the oldest magazines in the world. The Billboard Hot 100 music chart keeps track of the most popular songs and singles on a weekly basis. The popularity of the songs are based on their retail sales, digital sales, and radio airplays within the specific week.
 
Weekly Top 10 Songs of 2012 - based on Billboard Hot 100:

Go directly to Billboard.com:
Billboard Hot 100, the week's most popular songs across all genres
http://www.billboard.com/charts/hot-100#/charts/hot-100

Week 14:

Week 13: March 25 - 31
1. We Are Young - fun. Featuring Janelle Monae
2. Stronger (What Doesn't Kill ...) - Kelly Clarkson
3. Glad You Came - The Wanted
4. Set Fire To The Rain - Adele
5. Somebody That I Used To Know - Gotye Featuring Kimbra
6. Starships - Nicki Minaj
7. Turn Me On - David Guetta Featuring Nicki Minaj
8. Take Care - Drake Featuring Rihanna
9. Wild Ones - Flo Rida Featuring Sia
10. Part Of Me - Katy Perry

Week 12: March 18 - 24
1. We Are Young - fun. Featuring Janelle Monae
2. Stronger (What Doesn't Kill ... - Kelly Clarkson
3. Set Fire To The Rain - Adele
4. Glad You Came - The Wanted
5. Somebody That I Used To Know - Gotye Featuring Kimbra
6. Turn Me On - David Guetta Featuring Nicki Minaj
7. Take Care - Drake Featuring Rihanna
8. Young, Wild & Free - Snoop Dogg & Wiz Khalifa Featuring Bruno Mars
9. Starships - Nicki Minaj
10. Part Of Me - Katy Perry

Week 11: March 11 - 17
1. We Are Young - fun. Featuring Janelle Monae
2. Stronger (What Doesn't Kill ... - Kelly Clarkson
3. Set Fire To The Rain - Adele
4. Glad You Came - The Wanted
5. Part Of Me - Katy Perry
6. Starships - Nicki Minaj
7. Young, Wild & Free - Snoop Dogg & Wiz Khalifa Featuring Bruno Mars
8. Turn Me On - David Guetta Featuring Nicki Minaj
9. Somebody That I Used To Know - Gotye Featuring Kimbra
10. We Found Love - Rihanna Featuring Calvin Harris

Week 10: March 4 - 10
1. Stronger (What Doesn't Kill ...) - Kelly Clarkson
2. Set Fire To The Rain - Adele
3. We Are Young - fun. Featuring Janelle Monae
4. Part Of Me - Katy Perry
5. Glad You Came - The Wanted
6. We Found Love - Rihanna Featuring Calvin Harris
7. Good Feeling - Flo Rida
8. Turn Me On - David Guetta Featuring Nicki Minaj
9. Young, Wild & Free - Snoop Dogg & Wiz Khalifa Featuring Bruno Mars
10. Starships - Nicki Minaj

Week 9: February 26 - March 3
1. Part Of Me - Katy Perry
2. Set Fire To The Rain - Adele
3. I Will Always Love You - Whitney Houston
4. Stronger (What Doesn't Kill ... - Kelly Clarkson
5. Rolling In The Deep - Adele
6. We Are Young - fun. Featuring Janelle Monae
7. Someone Like You - Adele
8. We Found Love - Rihanna Featuring Calvin Harris
9. Starships - Nicki Minaj
10. Turn Up The Music - Chris Brown

Week 8: February 19 - 25
1. Stronger (What Doesn't Kill ...) - Kelly Clarkson
2. Set Fire To The Rain - Adele
3. We Are Young - fun. Featuring Janelle Monae
4. Sexy And I Know It - LMFAO
5. Good Feeling - Flo Rida
6. We Found Love - Rihanna Featuring Calvin Harris
7. I Will Always Love You - Whitney Houston
8. Turn Me On - David Guetta Featuring Nicki Minaj
9. Rack City - Tyga
10. Give Me All Your Luvin' - Madonna Featuring Nicki Minaj & M.I.A.

Week 7: February 12 - 18
1. Stronger (What Doesn't Kill ... - Kelly Clarkson
2. Set Fire To The Rain - Adele
3. Good Feeling - Flo Rida
4. We Found Love - Rihanna Featuring Calvin Harris
5. Turn Me On - David Guetta Featuring Nicki Minaj
6. Domino - Jessie J
7. Rack City - Tyga
8. Young, Wild & Free - Snoop Dogg & Wiz Khalifa Featuring Bruno Mars
9. Sexy And I Know It - LMFAO
10. It Will Rain - Bruno Mars

Week 6: February 5 - 11
1. Set Fire To The Rain - Adele
2. Stronger (What Doesn't Kill ...) - Kelly Clarkson
3. We Found Love - Rihanna Featuring Calvin Harris
4. Good Feeling - Flo Rida
5. Turn Me On - David Guetta Featuring Nicki Minaj
6. It Will Rain - Bruno Mars
7. Sexy And I Know It - LMFAO
8. Domino - Jessie J
9. The One That Got Away - Katy Perry
10. Rack City - Tyga

Week 5: January 29 - February 4
1. Set Fire To The Rain - Adele
2. We Found Love - Rihanna Featuring Calvin Harris
3. Good Feeling - Flo Rida
4. Turn Me On - David Guetta Featuring Nicki Minaj
5. The One That Got Away - Katy Perry
6. It Will Rain - Bruno Mars
7. Sexy And I Know It - LMFAO
8. Stronger (What Doesn't Kill ...) - Kelly Clarkson
9. Ni**as in Paris - Jay Z Kanye West
10. Domino - Jessie J

Week 4: January 22 - 28
1. We Found Love - Rihanna Featuring Calvin Harris
2. Set Fire To The Rain - Adele
3. Good Feeling - Flo Rida
4. It Will Rain - Bruno Mars
5. Sexy And I Know It - LMFAO
6. The One That Got Away - Katy Perry
7. Ni**as in Paris - Jay Z Kanye West
8. Rack City - Tyga
9. Young, Wild & Free - Snoop Dogg & Wiz Khalifa Featuring Bruno Mars
10. Turn Me On - David Guetta Featuring Nicki Minaj

Week 3: January 15 - 21
1. We Found Love - Rihanna Featuring Calvin Harris
2. Sexy And I Know It - LMFAO
3. It Will Rain - Bruno Mars
4. Set Fire To The Rain - Adele
5. Good Feeling - Flo Rida
6. The One That Got Away - Katy Perry
7. Ni**as in Paris - Jay Z Kanye West
8. I Won't Give Up - Jason Mraz
9. Party Rock Anthem - LMFAO Featuring Lauren Bennett & GoonRock
10. Someone Like You - Adele

Week 2: January 8 - 14
1. Sexy And I Know It - LMFAO
2. We Found Love - Rihanna Featuring Calvin Harris
3. The One That Got Away - Katy Perry
4. It Will Rain - Bruno Mars
5. Good Feeling - Flo Rida
6. Party Rock Anthem - LMFAO Featuring Lauren Bennett & GoonRock
7. Ni**as in Paris - Jay Z Kanye West
8. Set Fire To The Rain - Adele
9. Someone Like You - Adele
10. Stereo Hearts - Gym Class Heroes Featuring Adam Levine

Week 1: January 1 - 7
1. Sexy And I Know It - LMFAO
2. We Found Love - Rihanna Featuring Calvin Harris
3. The One That Got Away - Katy Perry
4. It Will Rain - Bruno Mars
5. Ni**as in Paris - Jay Z Kanye West
6. Good Feeling - Flo Rida
7. Set Fire To The Rain - Adele
8. Someone Like You - Adele
9. Party Rock Anthem - LMFAO Featuring Lauren Bennett & GoonRock
10. Dance (A$$) - Big Sean Featuring Nicki Minaj