Brokenhearted by ......

This song is super catchy! When I first heard it I thought it was Jessie J....but then she kind of sounded like Katy Perry....and then at one part I was was like Nicki Minaj? So I concluded that it was an ingenius combination and history had been made by this one song! (Now I sort of want a Jessie J/Katy Perry/Nicki Minaj song to come out.)
Well despite my crazy ears misleading me, this song is actually sung by a duo called Karmin! (The male doesn't actually sing in this song. They have original songs which he usually sings backup in.) You should definitely check them out on YouTube and the song is worth the price on Itunes.
Listen to these songs!!

Brokenhearted by Karmin

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This is one of their covers. :)