Kesha - Backstabber
Selena Gomez - My Dilemma
Britney Spears - Breathe On Me
Britney Spears - Get Back
Britney Spears - Unusual You
Katy Perry - Hummingbird Heartbeat
Christina Aguilera - Let There Be Love
Christina Aguilera - I Hate Boys
Christina Aguilera - Impossible
Christina Aguilera - So Emotional
Azealia Banks - Esta Noche
Alicia Keys - Put It In A Love Song
Britney Spears - Alien
Demi Lovato - Who's That Boy f/Dev
Nelly Furtado - Wait For You f/Timbaland
Lana Del Rey - Cola
Ciara - Read My Lips
Ciara - Hotline
Lady Gaga - Dance In the Dark
Lady Gaga - Boys Boys Boys
Nicki Minaj - Save Me
Nicki Minaj - I'm the Best
Rihanna - Lov7 Song
Rihanna - Fading
Justin Timberlake - Tunnel Vision
Taylor Swift - Enchanted
What I've got for a list so far (concerning mainstream Pop songs, mostly).
Any others from earlier eras, maybe, other artists or even MALE artists?

What about bands like 1D? And no one clarified the Shakira ones.