The multitalented Missy Elliott is best known for her brain-bending takes on hip-hop, which revel in the weird. But that anything-goes sensibility stems from a keen knowledge of pop songcraft—she got her start co-writing R&B hits in the ’90s, and she has gone on to pen not only her own smashes (“Get Ur Freak On”, “Gossip Folks” and many others) but also songs for the likes of Destiny’s Child, Ciara and Ariana Grande.