A "Peacock" Jumpsuit once worn by Elvis Presley is shown in this photo taken on April 14, 2006. The jumpsuit may fetch up to $325,000 when it goes up for auction through GottaHaveIt.com, a New York company that sells sports and entertainment memorabilia

For sale: a Mickey Mouse Club T-shirt worn by Britney Spears and autographed by fellow Mouseketeers Justin Timberlake and Christina Aguilera; Elvis Presley's favorite peacock jumpsuit; a handwritten draft of Bruce Springsteen's breakout hit, ``Born to Run.''

These celebrity relics are among about 500 items put up for auction by GottaHaveIt.com, a New York company that sells sports and entertainment memorabilia. GottaHaveIt estimates that the rock-'n'-roll-themed, for-profit sale will bring in as much as $1.5 million, Chief Executive Officer Peter Siegel said in an interview. Online bids can be submitted through Aug. 6, he said.

Presley's peacock jumpsuit, valued at about $325,000, attracted an initial bid of $250,000 this week, Siegel said. The white suit worn at 1970s concert appearances has a blue- and turquoise-colored peacock emblazoned on the chest and feathers along the legs.

``We expect that amount to go higher,'' Siegel said. ``The frenzy really begins two days before the auction ends.''

Also for sale, the blue jeans worn by Marilyn Monroe in ``River of No Return,'' a 1954 film that paired her with Robert Mitchum. Fashion designer Tommy Hilfiger, who paid $37,000 for them at a 1999 auction, gave the jeans to Spears as a gift, Siegel said.

Monroe's jeans are expected to fetch $65,000 to $75,000, Siegel said, and the estimate for the Mouseketeer shirt is $15,000 to $18,000.

Johnny Cash at San Quentin

Celebrity junkies can also bid on the jumpsuit Johnny Cash appeared in for a 1969 gig at California's San Quentin State Prison and slacks John Lennon of the Beatles wore in the film ``A Hard Day's Night.''

Gotta Have It! Collectibles Inc., the Web site's parent company, was started in 1994 by Siegel and then-partner Robert Schagrin. GottaHaveIt.com acquires celebrity souvenirs at auctions and estate sales and sells them for profit. The company also helps private individuals build memorabilia collections.

Nine years ago at a Christie's auction, Siegel paid $1.25 million for the silk-gauze dress Monroe wore in 1962 when she sang ``Happy Birthday'' to President John F. Kennedy at Madison Square Garden. The dress is not being offered for sale at the current auction.