Released on the 2011 album Join Us, "Let Your Hair Hang Down" is a vibrant track by They Might Be Giants that exemplifies the group's signature blend of whimsical melodies and intellectual lyricism. The song features the band's characteristic use of harmonica and accordion, weaving a playful atmosphere that contrasts with their often complex wordplay. As part of their ongoing exploration of pop-rock and art rock, the recording showcases the band's ability to create catchy hooks while maintaining a distinct, quirky identity. The track stands as a testament to their enduring appeal, capturing a moment of lightheartedness within their broader discography.