What is que paso?

"Que Paso" is a Spanish phrase that translates to "What happened?" in English. It is commonly used in Spanish-speaking countries to inquire about events or situations. The phrase can be used in both formal and informal contexts, depending on the tone and setting of the conversation. If you are referring to a specific context where "Que Paso" is used, such as a song, TV show, or a piece of news, please provide more details so I can give you more targeted information.