Debuting as Mallrat in her teens, Brisbane-born singer, songwriter, and producer Grace Shaw blends bedroom pop and hip-hop into a dreamy amalgam that only heightens her heart-on-sleeve subject matter. Shaw characteristically holds her ground on 2018’s “Groceries,” detailing how she’ll go about her business until her love interest returns (or doesn’t). Savvy collabs with Azealia Banks and Allday highlight her natural affinity for floaty rap, while 2020’s deadpan fantasy “Rockstar” flexes her equal potential as alt-pop royalty. Even deeper in that vein is the Alice Ivy co-production “Teeth,” inspired by the heyday of The O.C. soundtracks.