On the day of Discovery's final return to Earth, its crew and the crew of the International Space Station had an amazing wake up call from Captain James T. Kirk himself.

I'm sure the astronauts laughed with this one—while trying to hold their emotions in their last mission day.

Wake me up, Scotty

NASA's official wake up timeline starts with the Gemini 6A mission, which went from December 15 to December 16, 1965. Ground control sent Hello Dolly sung by Jack Jones. Gemini 7—which launched on December 4 and was met by Gemini 6A in the first manned orbital rendezvous—got a lot more wake up calls during it's 13 and a half days in space, starting with some Hawaiian music sent on December 6—the very first wake up call. The next day they got Beethoven's 6th Symphony. The next it was Sinatra's High Hopes.

On December 9, NASA played a special request from the Jim Lovell's 12-yo daughter Barbara: I Saw Mommie Kissing Santa Claus. The kid thought the song will make the dad come down to Earth in time for Christmas.

And from there, the tradition started. Every genre has played in space, from the rock classics to all kinds of pop, country, classical music, jazz, and bossa nova songs.

Sometimes it were the crews who played wake up music down to mission control, like when the crew of Apollo 10—Commander Thomas P. Stafford, Command Module Pilot John W. Young and Lunar Module Pilot Eugene A. Cernan—beamed Sinatra's Come Fly With Me. Other times NASA makes especial wake up calls for especial occasions. This was one of them.

I'm glad Shatner didn't sing Rocketman.