Singer best known for albums like 2006's Like Blood Like Honey and 2013's Don't Look Down.
She was born Holly Brook Hafermann and recorded three independently-produced album as part of the duo Generations.
She made her debut as Skylar Grey during the 53rd Grammy Awards, performing the Dr. Dre song "I Need a Doctor."
She and her mother formed the folk duo Generations.
She wrote the mega-hit single "Love the Way You Lie," recorded by rapper Eminem.