In the Darkest of Nights, Let the Birds Sing is the fourth extended play (EP) by American indie rock band Foster the People, and their first to consist entirely of non-album material.

Its lyrics revolve around the concept of love, and many of its songs were written about the relationship between lead singer Mark Foster and his wife, Julia Garner.

[2] Of the split, frontman Mark Foster said that he had become complacent knowing he had "other people with experience that would come up with ideas for us", but noticed that the "identity of the band was starting to get diluted because we were letting other things [...] influence it".

[3] The band recorded remotely, setting up a Dropbox server where they shared files and revised songs until they were ready for mixing.

[10] A piano-led[7] ballad,[9] keyboardist Isom Innis wrote the music of "Lamb's Wool" to honor his grandmother, a pianist who taught him how to play, following her death.

[7] The inspiration for "Cadillac" appeared early in the writing process, when Foster envisioned himself driving the titular car "into the great unknown" with Garner.

The title of In the Darkest of Nights, Let the Birds Sing was chosen in reference to the importance of "things that are there that remind us that the world is beautiful" during 2020, according to Foster.

[13] The vinyl release of In the Darkest of Nights, Let the Birds Sing features a slightly shuffled track listing.

The positions of "Cadillac" and "Walk with a Big Stick" are switched,[8] and "Imagination", a previously released single,[14] appears as a bonus track.

[15] The band first teased new music on their Instagram account in April 2020,[16] prior to the release of lead single "Lamb's Wool" on May 22.

[20] Its proceeds were split evenly between four charities; Black Lives Matter International, The Bail Project, Rebuild Foundation and the Underground Museum.

[23] On November 12, the band officially announced In the Darkest of Nights, Let the Birds Sing, accompanied by the release of the third single, "Under the Moon".

He singled out "Your Heart is My Home" as "the only track on the EP that fully justifies its existence", but overall dubbed the release a "lame duck".