Suggestion by Angelise Ambrose. No, this is not from the live action toy commercial. This is from the soundtrack of the next Equestia Girls movie, Friendship Games. Hope you enjoy! :D

Song Info
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Title: Unleash the Magic

Sung by: Rebecca Shoichet, Iris Quinn, and Choir

Music by: Daniel Ingram

Lyrics by:  Josh Haber
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Download
https://drive.google.com/file/d/0B4rWjc5HWscneE5XQ0JHMnpyUjQ/view?usp=sharing

Original Art
http://www.deviantart.com/art/Twilight-s-magic-attack-340075874