1 SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report: JUNE 26, 2001 Date of Earliest Event Reported: JUNE 18, 2001 LIBERTY MEDIA CORPORATION (Exact Name of Registrant as Specified in its Charter) DELAWARE (State or Other Jurisdiction of Incorporation) 333-55998 84-1288730 (Commission File Number) (I.R.S. Employer Identification No.) 9197 SOUTH PEORIA STREET ENGLEWOOD, COLORADO 80112 (Address of principal executive offices, including zip code) Registrant's telephone number, including area code: (720) 875-5400 2 ITEM 5. OTHER EVENTS. See Exhibit 7(a) to this Form 8-K. ITEM 7. FINANCIAL STATEMENTS, PRO FORMA FINANCIAL INFORMATION AND EXHIBITS. The following exhibit is being filed with this Form 8-K: (a) Press Release issued June 18, 2001 by Liberty Media Corporation and AT&T Corp. 3 SIGNATURE Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. Date: June 26, 2001 LIBERTY MEDIA CORPORATION By: /s/ Charles Y. Tanabe ----------------------------- Name: Charles Y. Tanabe Title: Senior Vice President, General Counsel and Secretary 4 EXHIBIT INDEX EXHIBIT DESCRIPTION 7(a) Press Release issued June 18, 2001 by Liberty Media Corporation and AT&T Corp.