Yin! Yang! Yo! Sezon 1 Odcinek 18: The Gig is Up / Doomed to Repeat It

The Gig Is Up: The Chung Pow Kitties have gotten their hands on an ancient Woo Foo artifact of great power - Lalladin's Amp. (It was the amp Master Yo used in his high school band, "Pandangerous.") The only way to get it back... Battle of the Bands! / Doomed to Repeat It: When Yin and Yang refuse to pay attention to their lessons, Master Yo sends them back. There they meet previous Woo Foo twins who have all of Yin and Yang’s attitude and strange fighting techniques.