Sing

"Sing" is a song written by Joe Raposo to be performed on Sesame Street that was later covered by The Carpenters to great acclaim. Sing features prominently throughout Peace Walker, being heard, mentioned, and finally sung various times by the characters, often due to Strangelove. The Carpenters' version peaked at number 3 on the Billboard hot 100 in early 1973, more than a year prior to The Peace Walker Incident. The song is never played in full, mentioned by name by the characters, or featured in any soundtracks, which could likely be due to copyright reasons/costs.

Appearences in Peace Walker

 * Cecile mentions to Snake that she heard the second female voice "singing a strange song" whilst imprisoned by Strangelove upon Snake finding her.
 * The studio/single version is heard in Strangelove's lab when Strangelove first shows Snake the Basilisk pod, playing on offscreen speakers/the PA.
 * The same version is heard again when Strangelove tortures Snake, playing on a radio.
 * The Basilisk sings it in the climax of the game in Peace Walker Battle 3, just after recovering. The listening characters speculate that this represents The Boss' orginal principles, "singing" instead of fighting, as it drowns itself in the lake to stop the signal.
 * It is lastly played in the first credits sequence, though not in full, being interrupted by radio static.

Significance in Peace Walker
Sing was a popular single a year and a half prior to The Peace Walker incident, and features prominently where Dr. Strangelove does. Where she appears, it is often being played on hardware that allows selective music playing, which suggests that it was a favourite song of hers. Basilsk, being an AI manifestation of The Boss, and given her and Dr. Strangelove's friendship (and unrequited love on Strangelove's part) it is possible that the Basilisk may have also gained an interest in the song, Strangelove having likely played it a lot in the lab, assuming it had the intellectual capacity to.