On “Big Plans,” the members of Why Don’t We ask a girl to “take a chance” with them in a relationship. The song was released on the 17th of January, 2019, marking their first release after their debut album 8 Letters.

The song was first teased by Why Don’t We when they posted a snippet of the song to their Instagram. Within 10 hours of this, the song was accidentally made available on Spotify for half an hour, predominately to Australian and New Zealand users.