Billie Eilish encourages fans to write letters to their future selves.

After sharing her new single, 'My Future', Billie Eilish has teamed up with Spotify on a new mini website which encourages fans to write a letter to their future selves.

After writing and signing your letter, you can choose any date in the next two years when you want to receive your letter.

Click here to take part in the promo - and watch the 'My Future' music video below: