Kelly's career spans from venues such as The Parrot - The Waldorf Hilton, The 606 Jazz Club, Pizza Express Live - Holburn & The Pheasantry, P&O Cruises, Princess Cruises, Celebrity Cruises, The Other Palace, Double Tree Hilton Hotels, Dolphin Hotels, Chichester Park Hotel, Haven and various corporate events and functions including weddings. Guest appearances include A Little Help From My Friends at the Liverpool Olympia, Backstage at the Barge on the Battersea Barge, Never Forget Them at the Palace Theatre and performances in various London cabaret/jazz venues and hotels. Kelly was a finalist in Open Mic UK 2015. 

Born in Essex, Kelly was a keen performer from a young age. Growing up, Kelly trained as a classical ballet dancer and went on to dance with the Kirov Ballet Company and National Youth Ballet of Great Britain with performances at the London Coliseum, The Royal Opera House and Sadlers Wells. She also danced at the re-opening of Hampton Court Palace for HRH Queen Elizabeth II and was featured on the Royal Academy of Dancing's Syllabus DVDs. Kelly's training continued at the Central School of Ballet and London Studio Centre.

After graduating, Kelly went on to perform as a Lead Vocalist for P&O Cruises, Princess Cruises and Celebrity Cruises. Kelly covered the role of Snake at the Prince of Wales theatre in the West End production of Children of Eden, played a Diva in HMS Pinafore at the King’s Head, sang backing vocals for Search For A Twitter Star in the West End’s Lyric Theatre, was a guest artist in the UK Tour of Magic of the Movies and performed in various pantomimes and trade shows. Television appearances include Top of the Pops, BBC’s Joy To The World at the Royal Albert Hall and Blue Peter. Kelly was part of the resident bands for Thomson Gold in Cyprus, Butlin’s, Minehead and the Diamond Princess & Sun Princess for Princess Cruises.