The 39-year-old singer, who released his fourth studio album Moon Landing recently, said the name actually refers to performers who accidentally brush bottoms while undressing backstage, reported Contactmusic.
"In the dressing room, if you bend over and the person beside you bends over at the same time, and should your cheeks touch, that's a moon landing. You've associated it with space, but I was thinking of dressing rooms," said Blunt.
The 'Stay The Night' hitmaker said he has suffered his share of wardrobe malfunctions on stage.