Jessica Simpson has reportedly cancelled a series of promotional commitments after losing her voice in New York.
Today host Matt Lauer announced on the air that Jessica Simpson's live concert in New York City's Rockefeller Plaza had been re-scheduled for Friday. However, Jessica is expected to stop by the NBC morning show on Wednesday for a brief appearance.
Jessica Simpson's rep, Rob Shuter said:
Jessica has lost her voice on the eve of her album release. We hope she can recover. The timing could not have been worse. 
A source close to Jessica Simpson said:
If she does not observe vocal rest, she could lose her voice forever, 
Her party is (Tuesday) night. If she goes to the party, she won't be able to talk. 