United States Postal Service

The United States Postal Service is a government-run corporation which oversees the mail system of The United States of America. The American postal system was founded by Benjamin Franklin in 1775.

Unlike its commercial competitors such as UPS (United Pigeon Service), the USPS is the only mail organization which delivers mail to the North Pole. This distinction played an important role in the special A Muppets Christmas: Letters to Santa, in which the Muppets had to deliver letters to Santa Claus by hand after the local post office had closed. The song "Delivering Christmas," which honors the postal workers who deliver the letters to Santa, was later made available on an album sold by the Postal Service.

The USPS has also honored the Muppets with postage stamps: Big Bird's likeness graced a 1999 stamp honoring events of the 1970s, while Jim Henson and the cast of The Muppet Show appeared on a set of stamps issued in 2005 to honor Kermit the Frog's 50th anniversary. Henson and Rowlf also promoted the 1986 Love Stamp.

On November 30, 2009, the official Muppets Studio Twitter page announced that the USPS and the Muppets would team up for a project to be announced the following day.