Bart's voice came naturally to Cartwright, as she had previously used elements of it in My Little Pony, Snorks, and Pound Puppies.

She also voices Spike the dragon and the Mayor of Ponyville in My Little Pony: Friendship Is Magic.

He is also the voice of the Wonderbolt Soarin' in My Little Pony: Friendship is Magic.

In addition she does Applejack and Fluttershy in My Little Pony: Friendship Is Magic.

She is perhaps best known for her role as the singing voice of Pinkie Pie in My Little Pony: Friendship Is Magic.

The horse-head scene is also parodied in the episode Lisa's Pony.

She made her feature debut in 1927's Smith's Pony.

In My Little Pony: Friendship is Magic, winged unicorns play a role as ponies of royal status.

The first was awarded in 1992 for the episode "Lisa's Pony", and the second in 2004 for "Today I Am A Clown".