Claude Kelly is an American singer, songwriter and music producer. He is a four-time Grammy Award nominee, and has written or co-written songs for chart-topping artists including Michael Jackson, Whitney Houston, Kelly Clarkson, Britney Spears, Ariana Grande, Bruno Mars, Christina Aguilera, Adam Lambert, Jennifer Lopez, Kesha, Brandy, Keke Wyatt, Tori Kelly, and One Direction. He and Chuck Harmony make up the R&B duo Louis York; together with Harmony, he founded the music collective Weirdo Workshop.