TOP TIER
1. Lady Gaga
2. Amy Winehouse
3. Jennifer Lopez
HIGH TIER
1. Carrie Underwood
2. M.I.A.
3. Haley Reinhart
MID TIER
1. Nicki Minaj
2. Justin Bieber
3. Beyonce
4. Azealia Banks
5. Rihanna
6. Queen
7. Robyn
SOMETIMES TIER
1. Bjork
2. Kelly Clarkson
3. Madonna
4. Katy Perry (Thinking Of You, Teenage Dream, TOTGA, etc.)
Who?
1. Eminem
2. Lil Wayne
3. Jay-Z
4. Jessie J
5. Cher Lloyd
6. Florence + the Machine
7. Chris Brown