In October 2010, Kusterbeck appeared alongside her bandmates from VersaEmerge on the MTV documentary series called World of Jenks, which followed the band around documenting their experiences performing at Warped Tour.

The episode focused mainly on Sierra, covering her experiences as a young and new female lead in a male dominated genre.

[5] In 2016, Kay and Nick Fit of Trash Talk started the band Neaux (pronounced "nOH").

[9] Kay is featured on fellow Floridian band A Day to Remember's song, "If It Means a Lot to You," from their third album titled Homesick.

Kay featured on English rapper Professor Green's album At Your Inconvenience, on the track "Avalon".