The most popular song by Sunset Shimmer, Twilight Sparkle, Pinkie Pie, Rainbow Dash, Fluttershy, Applejack & Rarity's is Opening Titles (Remix)
Sunset Shimmer, Twilight Sparkle, Pinkie Pie, Rainbow Dash, Fluttershy, Applejack & Rarity's first song Opening Titles (Remix) released on Tue Sep 23 2014.