Which KISS FM Artist ACTUALLY Wrote Diamonds For Rihanna

The answer may surprise you!

Rihanna has had maybe the biggest song from the past six months with her hit record "Diamonds."  But did you know that Rihanna didn't write this song?  Even if you assumed she didn't, did you know that the song was actually written by another KISS-FM artist?

Here is video of a woman singing "Diamonds," a song she wrote. She is an Australian singer/songwriter named Sia.  If you're wondering why that name may sound familiar, it's because she is the featured artist and female voice on Flo-Rida's crazy-huge 2012 hit "Wild Ones."

Whose version do you like better?