Wake-up calls are a long-standing NASA tradition. Each day during a Space Shuttle mission, Mission Control plays a short recording to start the day's activities.
Image to right: STS-114 Mission Specialist Soichi Noguchi of Japan was awakened on Flight Day 5 by a school chorus that included his own children.
The recordings are selected by flight controllers or by crewmembers' friends and family members. Most wake-up calls are musical. A typical list of calls for a mission includes rock, country, classical, bluegrass and jazz, as well as childrens' choruses and memorable bits of movie dialog. Crewmembers from partner nations may hear a song from their own country.
The recording is usually followed by a call from the CAPCOM in Mission Control, wishing the crew a good morning.
+ Listen to STS-114 wake-up calls