Billie Marten is a British singer-songwriter and folk-musician. She first came to prominence at the age of twelve when a video on YouTube of her singing garnered thousands of views. She released her first EP at the age of fifteen in 2014, and her second EP As Long As a year later. At the end of 2015, she was nominated for BBC's Sound of 2016 award. As Long As features the song ''Bird'', which she wrote with Olivia Broadfield. The 10-inch As Long As is exclusively available for Record Store Day 2024 as a limited edition of 750 copies on black vinyl.