FIESTAR have revealed a behind-the-scenes look at their music video for "Apple Pie"!

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The girls show you how they made the delicious treat, and fans get an inside look at the filming. Jei�comments that it's a historical moment as Yezi�actually wore a red ribbon in her hair, Jo Se Ho�shows up to support his 'We Got Married' wife Cao Lu, and the members say they're a lot more upbeat because of the upbeat song.

Check out FIESTAR's yummy "Apple Pie" making-of above!