The group is best known for their hit single, "The Little Black Egg", which was written in 1965 for an Easter concert in which the band opened for The Beach Boys.

The reformed Nightcrawlers did one more single for Kapp, "My Butterfly" written by band members Sylvan Wells and Rick Hollinger, in a more hard rock vein and then disbanded.

Although the group never gained wide fame, the simple riff of "The Little Black Egg" made it a favorite cover for garage bands of each musical era since the 1960s.

Outsider music specialist Irwin Chusid claimed that when he was a teen the record sparked his interest in "odd songs".

[3] At the behest of Ajaye Agency in Cincinnati, Rick Hollinger reformed the Nightcrawlers in 1968 in Tallahassee, Florida, for the express purpose of taking them to Ohio because the song "Little Black Egg" was enjoying a resurgence.