Since January 1, 2016:

1. Kesha (324 plays)
2. Samantha Jade (169 plays)
3. Katy Perry (97 plays)
4. Carly Rae Jepsen (85 plays)
5. Bonnie Anderson / Fifth Harmony (83 plays)

1. Kelly Clarkson (27,241 plays)
2. Carrie Underwood (22,547 plays)
3. Taylor Swift (22,205 plays)
4. Demi Lovato (19,506 plays)
5. Selena Gomez (& the Scene) [12,997 plays]

1 Britney Spears 27,020 plays
2 Nicole Scherzinger 4,224 plays
3 Sugababes 1,837 plays
4 Ciara 1,739 plays
5 Anastacia 1,734 plays