3 is a number in the Arabic Numeral System—the most widely used numeral system in the world. It sponsored the first episode of Sesame Street, along with E, S, W and 2.

Songs about 3

• "Three" (Elmo, Herry Monster and Prairie Dawn)
• "Three Song (Song of Three)"
• "Jazz #3"
• "Pinball Number Count"
• "Knock Three Times" (Oscar the Grouch)

Skits about 3

• The Mad Painter #3
• Three Monsters
• Number of the Day