BBBFF is a boyband in the FiW universe. The name stands for Ben, Ben, Ben, Francis Danger, and Francis Sparkle; the names of its five members. One of the Francis is Twilight's adopted brother (and husband). This band was first mentioned at Episode 8, "Foaly Matripony
On Febraeburnuary 15th, they ran out of money. They launched the Reunion tour and plan to visit Milwaukee, Hollywood, Yonkers, and Kissimmee for the tour.
Febraeburnuary is probably a reference to the month February and Applejack's cousin, Braeburn.