Lemon Zest

Lemon Zest is a female human and one of the Crystal Prep Academy Shadowbolts in My Little Pony Equestria Girls: Friendship Games and Dance Magic. In the film's closing credits, she is miscredited as Lemon Tart (Which in the SAFA series is actually a maiden name after her mother had another husband.)

Friendship Games
Lemon Zest appears in My Little Pony Equestria Girls: Friendship Games as a member of Crystal Prep Academy's sports team, the Shadowbolts. She sits next to Twilight Sparkle on the bus to Canterlot High School for the Friendship Games, sharing her deafeningly loud rock music with Twilight. She dances and mingles with Canterlot High's students during the welcoming party after Pinkie Pie helps lighten the tension between schools, but she returns to her hostile attitude after Principal Cinch intervenes.

Lemon Zest participates in the Friendship Games' first event, the Academic Decathlon, and she is selected as the Shadowbolts' six remaining competitors after reaching the penultimate spelling bee contest. She and Sunny Flare compete in the speed-skating portion of the Tri-Cross Relay, but they lose to Pinkie Pie and Rarity despite catching up to them after the Wondercolts' early lead.

Before the games' final event, Lemon Zest and her team join Principal Cinch in pressuring Twilight into releasing the magic contained in her pendant-like device, intending to use it against Canterlot High. They all watch in horror as the magic instead transforms Twilight into Midnight Sparkle, who begins tearing open rifts to Equestria. Having a change of heart, Lemon Zest helps Indigo Zap pull Rarity, Fleur Dis Lee, and "Velvet Sky" from falling through a giant rift in the ground.

After Twilight returns to normal, Lemon Zest and her team turn on Cinch for causing Twilight's transformation, and they celebrate their shared victory with the Wondercolts. She chats with DJ Pon-3 before the Crystal Prep students leave.

Equestria Girls: Dance Magic
In the half-hour special Dance Magic, Lemon Zest appears with Sunny Flare, Sour Sweet, and Sugarcoat competing with the Rainbooms in a music video contest.

Role in the series
Though she doesn't appear much in the series, her Equestrian Earth pony counterpart appears in the episode Speedster's Marathon, where she joins her Equestrian Shadowbolt counterparts to cheer for Indigo Zap during the Marathon, and eventually aids her in helping Rainbow Dash defeat The Speed King by taking away his Shoes of Hermes.