Special Delivery

Carly Simon was sleeping at her home on Martha’s Vineyard earlier this month when she got an early-morning call from Jack Potter. “He said, ‘This is the Postmaster General,’ ” she says. “You kind of sit up when that happens.”

Frank Krimmel and Jon Mandel at Grey in New York were doing a TV spot for the U.S. Postal Service using Simon’s Oscar-winning song “Let the River Run” from Working Girl. But a lyric had to be changed and a copy of the recording punched up.