Declan premiered this song live on his US tour for What Do You Think About The Car? and at the UK shows right after. He asked the audience not to film it at some of the shows. The song was originally listed on setlists as “Astronaut” and “Boys That Wait”, and later changed to “Be an Astronaut”, the official title.

The studio version of the song premiered on Beats 1 with Zane Lowe.