Eggs & Extraterrestrials Austin & Ally : Season 3 Episode 15

When Dez, Trish and Austin convince Ally to attend the annual Zaliens Convention that's being held in Miami, Trish and Dez happen to stumble upon real Zaliens who are planning to destroy the Earth- in order to save it, Austin and Ally must perform their new song to satisfy them, but end up becoming their musical captives!