“When the Curtain Falls” is a song by American rock band Greta Van Fleet. It is their first single off of their upcoming untitled studio album. As of August 2018, it had peaked at number 10 on the Billboard Mainstream Rock Songs chart.
The song was first released on July 17, 2018, as the debut single off of their unreleased and untitled upcoming studio album. The single was released ahead of the studio album to kick off their summer 2018 tour. The song’s live debut on national television was on July 28, 2018, on the The Tonight Show Starring Jimmy Fallon.
Billboard described the song’s sound as ” hard-hitting drums, funky, distorted guitar solos and sky-high, impassioned vocals. Rolling Stone described the song as “swaggering” and “blistering” with a bluesy guitar and bass melody. Variety noted that the song, like much of the band’s music, had a sound similar to Led Zeppelin. Lyrically, the song discusses a person’s fall from grace, vocalist Josh Kizska singing “When the curtain falls/ Walk the hollow halls, babe/ Once a valley doll/ Now, you’re not at all.”
Metal Sucks praised the song, comparing it favorably to the work of Led Zeppelin, concluding that “…it’s pretty good! If you like Led Zep it’s hard to imagine you won’t like this, so crank it and enjoy. If you were never into Robert Plant’s voice…well, you should probably just move along.” Loudwire simillarly praised it for its “rich classic rock warmth and sheen worthy of the genre’s most accomplished artists”. Multiple publications and news outlets praised the band’s live performance of the song on The Tonight Show Starring Jimmy Fallon as well, noting that they also received a standing ovation from the crowd.