|Happy Birthday Chelsea|
|Season 1, Episode 2|
|Episode 2 Overall|
|Upload Date||May 11, 2012|
|Synopsis||Stacie has an airtight plan to ensure Chelsea's sixth birthday is the best one yet.|
Happy Birthday Chelsea is the second episode of the first season of Barbie: Life in the Dreamhouse. In this episode, Chelsea's sixth birthday is fast approaching and Barbie is determined to make it her best one yet.
In this episode, it's Chelsea's sixth birthday and she keeps trying to say what she wants for her birthday, but someone always interrupts her. Ken on the other hand was trying to build a simple bike for Chelsea, but instead he builds a Tennis-Playing Robot. After fixing it and coming in with a bike, Chelsea finally proclaims she wanted a tennis-playing robot, not a bike, causing Ken to faint.
- Chelsea's age is revealed, as it is her sixth birthday.
- Ken's difficultly with assembling an object, as well as his strange ability to build elaborate things at the same time are both shown, as he manages to assemble a self-aware Tennis-Playing Robot instead of a simple bike.