2008
1. Taylor Swift- 592,000
2. Britney Spears- 505,000
3. Beyonce- 482,000
4. Mariah Carey- 463,000
5. Miley Cyrus- 370,000
6. Keyshia Cole- 322,000
7. Madonna- 280,000
8. Jennifer Hudson- 217,000
9. Janet Jackson- 181,000
10. Pink- 180,000
11. Fergie- 142,000
2009
1. Susan Boyle- 661,000
2. Alicia Keys- 417,000
3. Mary J. Blige- 332,000
4. Carrie Underwood- 318,000
5. Whitney Houston- 305,000
6. Kelly Clarkson- 255,000
7. Barbra Streisand- 207,000
8. Rihanna- 181,000
9. Norah Jones- 180,000
10.Lady Gaga- 174,000
11. Mariah Carey- 169,000
2010
1. Taylor Swift- 1,047,000
2. Nicki Minaj- 375,000
3. Susan Boyle- 318,000
4. Rihanna- 207,000
5. Katy Perry- 192,000
6. Monica- 184,000
7. Kesha- 152,000
8. Keyshia Cole- 128,000
9. Fantasia Barrino- 117,000
10. Christina Aguilera- 110,000
11. Keri Hilson- 102,000
2011
1. Lady Gaga- 1,108,000
2. Adele- 352,000
3. Beyonce- 310,000
4. Britney Spears- 276,000
5. Rihanna- 198,000
6. Jennifer Hudson- 165,000
7. Kelly Clarkson- 163,000
8. Mary J. Blige- 156,000
9. Miranda Lambert- 133,000
10. Susan Boyle- 132,000
11. Demi Lovato- 97,000
2012
1. Taylor Swift- 1,210,000
2. Madonna- 359,000
3. Pink- 281,000
4. Carrie Underwood- 267,000
5. Nicki Minaj- 253,000
6. Rihanna- 238,000
7. Alicia Keys- 159,000
8. Norah Jones- 110,000
9. Keyshia Cole- 96,000
10. Kesha- 85,000
11. Lana del Rey- 77,000
2013
1. Beyonce- 617,000
2. Katy Perry- 286,000
3. Miley Cyrus- 270,000
4. Lady Gaga- 258,000
5. Ariana Grande- 138,000
6. Lorde - 129,000
7. Tamar Braxton- 114,000
8. Demi Lovato- 110,000
9. Britney Spears- 107,000
10. Selena Gomez- 97,000
11. Fantasia Barrino- 91,000
2014
1. Taylor Swift- 1,287,000
2. Barbra Streisand- 196,000
3. Nicki Minaj- 194,000
4. Lana Del Rey- 182,000
5. Miranda Lambert- 180,000
6. Ariana Grande- 160,000
7. Lady Gaga- 131,000
8. Carrie Underwood- 94,000
9. Shakira- 85,000
10. K. Michelle- 84,000
11. Lea Michele- 62,000
2015
1. Meghan Trainor- 195,000
2. Carrie Underwood- 164,000
3. Madonna- 116,000