Isabella Sophie Tweddle (born 27 May 1999), better known under the stage name Billie Marten, is a British singer-songwriter and musician from Ripon in North Yorkshire. Her stage name came from her family's desire to keep her real name private because her music career started when she was a tween.[1] She first came to prominence at the age of twelve when a video on YouTube of her singing garnered thousands of views.[citation needed] She released her first EP at the age of fifteen in 2014, and her second EP a year later. At the end of 2015, she was nominated for BBC's Sound of 2016 award. She has since released four full-length albums: Writing of Blues and Yellows, Feeding Seahorses by Hand, Flora Fauna, and Drop Cherries, all of which have received critical acclaim. Her style can be described as singer-songwriter and folk.

In May 2014, just before her fifteenth birthday, Billie Marten released the single "Ribbon" via Burberry's curation program. She wrote the single with Fiona Bevan the previous year. According to Marten, one theme of "Ribbon" is "the elusiveness of the city, and how quickly you can lose something amongst the people and tube stations."In June 2014 she released her debut EP Ribbon. In August 2014 Marten played the BBC Introducing stage at the Reading Festival. She described her music in December 2014 as "a mix between acoustic and quite folky and a little indie."