Nirvana front man Kurt Cobain’s credit card, along with his “King of Clubs, Slot Club” card holder, has hit the auction block as part of Paddle8’s “Legendary: Memorabilia From Rock Gods and Pop Stars” collection this week.

Live on the site with six more days to go, the top bid is currently at $7,100 for the piece of plastic, and has already met its reserve. Emblazoned on the singer’s credit card is his signature and what looks like a phone number.

Cobain has also been making art world news of late for having inspired a show at the Montclair Art Museum (see Kurt Cobain Spurs New Grunge-Era Show). “Come As You Are: Art of the 1990s,” is the first survey at a major American museum to take an in-depth look at art being made in the ’90s.

Other notable items in the auction include Frank Sinatra’s signed 1944 New Jersey driver’s license. The document includes Sinatra’s personal information, including his height, eye color, hair color, weight, age (he was 28), and even his address at 220 Lawrence Ave, Hasbrouck Heights, New Jersey. Its estimate at $8,000–$10,000 surpasses that of Cobain’s card, though its one bid of $6,500, has not met the item’s reserve.

Also for sale is Britney Spears’s 1993 worn Mickey Mouse Club T-shirt signed by 14 cast members including the pop queen herself, Justin Timberlake, Christina Aguilera, and Ryan Gosling. The T-shirt, which also comes with an original photograph of the singer wearing it, has an estimate of $6,000–8,000, with its current below-reserve bid at $4,800.