Add Yahoo as a preferred source to see more of our stories on Google. "It's the craziest thing I've ever seen in my life," said Benny Blanco, who co-produced the hit track The hitmaker, 48, penned one ...

"It's the craziest thing I've ever seen in my life," said Benny Blanco, who co-produced the hit track Michael Loccisano/WireImage; Steve Granitz/FilmMagic Sia is one of the speediest songwriters in ...