Michael Loccisano/WireImage; Steve Granitz/FilmMagic Sia is one of the speediest songwriters in the game! The hitmaker, 48, penned one of her most well-known tracks, Rihanna’s “Diamonds,” in ...

Written by Sia, “Diamonds” is one of Rihanna’s most anthemic ballads. The 2012 hit features a dramatic yet uplifting instrumental, allowing Rihanna’s voice to shine in a way that was ...

Pop icon Sia has filed for divorce from her husband of two years, with court documents revealing the reclusive hitmaker ...

The "Stay" singer was gifted a scales of justice diamond pendant from the "F--kin' Problems" rapper for her 37th birthday, our source reveals. WireImage Rihanna's birthday celebration comes two ...