Holly Brook Hafermann, known professionally as Skylar Grey, is an American multi-instrumentalist and singer and songwriter. Grey was signed to Machine Shop Recordings under the name Holly Brook. She released her debut album, Like Blood Like Honey, as Holly Brook, in 2006. She co-wrote the three versions of "Love the Way You Lie" (for Eminem and Rihanna) with Alex da Kid, who signed her to his Wonderland Music label. She was featured as a guest vocalist on Fort Minor's "Where'd You Go" and "Be Somebody", Diddy-Dirty Money's "Coming Home", Dr. Dre's "I Need a Doctor", Lupe Fiasco's "Words I Never Said" and Kaskade's "Room for Happiness".