It just sold at auction for a cool $12,000, along with a photograph of the 27-year-old performer missing a fingernail, MTV reported Monday.
According to the ArtFact auction listing, the winning bidder will also receive a letter from the crew member explaining how he obtained the nail.
It reads: "I noticed an object on the floor of the stage, which at first I thought was a guitar plectrum. When I picked it up, I saw it was an acrylic nail."
ArtFact CEO Rob Weisberg said that the nail was sold to a UK bidder.
"This piece of Lady Gaga's personal style could appeal to both passionate collectors of pop culture relics or one of Gaga's Monsters," Weisberg said in a statement.