She is of Taiwanese and Bulgarian descent. Mree began writing her own songs at the age of 14 and released her debut album, Grow, in October 2011. The album debuted at #18 on the iTunes Singer/Songwriter Chart.
Hsiao began her career performing cover songs on YouTube, helping gain her several million video views and tens of thousands of subscribers and Facebook fans worldwide.
In 2011, she successfully crossed over to an original artist releasing her self-produced, full length, debut album entitled, “Grow” The album debuted at #18 on the iTunes Singer/Songwriter Chart. Mree released her second album "Winterwell", also self-produced and self-recorded, on 6 August 2013.
On 7 August 2013, the album trended at Number.52 on iTunes top alternative albums charts. In 2014, the album was awarded at Independent Music Awards in the "best producer" category, with jurors praising "the sophisticated soundscapes that cushion the songs".
As a performer, Mree has appeared at New York City venues including the Highline Ballroom, Rockwood Music Hall, and The Studio at Webster Hall.
In 2013, a Target commercial was released that featured a thirty-second clip of an original Christmas song by her entitled "Santa Catcher."
On December 8, 2015, she released her third album, "Empty Nest".