| "Magical Mystery Cure" | |
|---|---|
| My Little Pony: Friendship Is Magic episode | |
 Twilight Sparkle (front) crowned as a princess in her new alicorn form | |
| Episode no. | Season 3 Episode 13 |
| Directed by | James Wootton |
| Written by | M.A. Larson |
| Featured music | See Featured songs |
| Editing by |
|
| Original air date | February 16, 2013 |
| Running time | 22 minutes |
| Guest appearances | |
"Magical Mystery Cure" is the thirteenth and final episode of the third season of the animated television series My Little Pony: Friendship Is Magic and the sixty-fifth episode of the series overall. Directed by James Wootton, it was written by M.A. Larson.
In the episode, the destinies and cutie marks of Twilight Sparkle's friends get switched around, forcing Twilight to create a magic spell of her own in order to correct it. Part of the episode focuses on Twilight Sparkle becoming a princess and transforming into an alicorn. The Hub heavily emphasized the event while promoting the episode in a coronation-themed advertising sweepstakes campaign, which included a special concert event featuring Miss America 2013 winner Mallory Hagan, and a nine-episode marathon that preceded the episode's premiere.
Aired on February 16, 2013, on The Hub, the episode became the network's highest-rated telecast among kids aged 2–11. Reception from critics was polarized. Praise was given for the story, while its musical format, believing it took away from the story element, and Twilight's transformation into an alicorn were criticized. Similarly, a significant fraction of the show's fandom called the transformation a "jump the shark" moment.