Clearly, Billie plays the ukulele, and has opened up previously on how she learned her first song, The Beatles’ I Will, on the instrument.
She has also used the instrument in some of her own songs, including Party Favor and 8.
However, it is clear from her statement Billie plays more than just the ukulele, as this was her beginning instrument before branching out into new instruments.
Billie also plays the piano, and of course her best-known instrument is her voice, which she uses in her songs with real talent and depth.
source: express.co.uk