Four Step

Four Step is a female unicorn pony with a blue coat, yellow mane and tail, and purple eyes. She first appears in The Best Night Ever. She is unnamed in the show, but she is named in merchandise.

Design
Four Step wears the same dress as "Primrose".

Depiction in the series
Four Step first appears in the season one finale The Best Night Ever as a guest of the Grand Galloping Gala. She later appears in Sweet and Elite at Golden Gavel's charity auction.

In season four, Four Step appears in Equestria Games as a Games spectator in the stadium crowd.

My Little Pony (mobile game)
Four Step is a playable character in Gameloft's mobile game, made available in the version 2.1 update on December 11, 2014. Her in-game description states, "Four Step was born to dance! So if you need help with your horsetrot, hip-hoof or Melbourne Cup Shuffle, she's the pony for you!"

Merchandise
In the Canterlot Nights expansion set of Enterplay's collectible card game, Four Step is named on card #56 C, which gives her the description "Four Step stays on top of the latest Equestrian dance trends by attending every high culture event she can."