Olivia Lauryn Dean (born 14 March 1999) is an English singer. She began her career working in collaboration with Rudimental. She was named Amazon Music's 2021 breakthrough artist of the year and recorded an exclusive version of Nat King Cole's "The Christmas Song" for Amazon's 2021 Christmas Originals line-up, which charted at number 19 in the UK singles chart
Sam Fender and Olivia Dean’s “Rein Me In” has become the longest-running No. 1 single in UK chart history, breaking a 73-year record previously held by Frankie Laine’s “I Believe” from 1953.