¡Mira Quien Baila! debuted on the Spanish version of an American dance competition television series that premiered on what date?
Mira Quien Baila (U.S. season 4): ¡Mira Quien Baila! Mira Quien Baila (U.S. season 4):  (also known as Mira Quien Baila 2013 and Mira Quien Baila 4) debuted on Univision on September 15, 2013 at 8pm/7c.
i don't know