Jools chats to guest Celeste - the BBC's Sound of 2020 - about her musical journey so far. The soulful singer made her debut on Later a year ago, shortly after the release of her hauntingly beautiful breakthrough hit Strange, and her loves and influences are illustrated by a diverse selection of clips from the show's archive. This week's performances also offer introductions to two artists tipped for success in 2021 - Wigan band the Lathums and singer-songwriter Joesef