Jessica Simpson having breast reduction surgery?

(CBS) Jessica Simpson may be going under the knife for breast reduction surgery.

The singer, 31, reportedly wants to have the procedure done before her wedding to football player Eric Johnson.

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Britain's The Sun reports that Simpson told friends she's "fed up with her DD breasts" because they "make her look fat."

Simpson wants to slim down before she ties the knot, according to the report, and may postpone the Nov. 11 ceremony if she doesn't lose enough weight.

Simpson and Johnson announced their engagement in November 2010. Her ex-husband, singer Nick Lachey, married longtime girlfriend Vanessa Minnillo in July.