|Season 2, Episode 34|
|Air Date||March 21, 2009|
|Written by||Brian L. Perkins|
|Directed by||Michael James Luzzi|
|Silly Sock Saves the Circus||The Music Robot From Outer Space|
The Little Einsteins are in Barcelona, looking for castles, when they meet a friendly king. They showcase their musical powers to him. The king was impressed by their talents. He gives them rewards, the crystals.
- King (First and Last Appearance)
- Dragon (First and Last Appearance)
Art and Music
- Architecture and Sculpture by Antoni Gaudi
- The Blue Danube Waltz by Johann Strauss II
- In this episode a huge animation error is showcased. When the characters show their crystals with their hobby in them (ex. June - Dancing Slippers Annie - Microphone) Annie is holding June's Crystal and Annie is holding June's.
- This is the final appearance of Season 1 Blast Off!