Britney's mane event, day 2:hair for sale?

Los Angeles (E! Online) - Britney Spears' locks could soon be on the block.

The owners of the salon where the "Oops" singer shaved her head Friday exclusively tell E! News' Giuliana DePandi that Spears' shorn tresses were saved and may be sold for a good cause.

"She didn't want her hair. We have it here at the salon and we will probably auction it off for charity," said J.T. Tognozzi, who co-owns Esther's Hair Cutting Studio in Tarzana, California, with his wife, Esther.

Tognozzi didn't elaborate on a timetable for any auction or which charity might be the beneficiary of Spears' mane, but he did offer new details of the buzz cut heard 'round the world.

He says that Spears, accompanied by two bodyguards, knocked on the door around 7 p.m. Friday. Spears had never been to the salon before, and the shop was closed for the night, but Esther Tognozzi says that she immediately recognized the singer and let her in.

Spears said she wanted to get her head shaved. Esther Tognozzi sat her down, looked her over and then suggested less drastic alternatives.