What collaborations has Gabrielle Nistico done with Skillet and other artists?

The available content I have does not list any collaborations between Gabrielle Nistico and the band Skillet, or with other musical artists. My primary work is as a voiceover actor, coach, and speaker, and most of my collaborations are within the voiceover industry (other VO coaches, conferences, and VO-focused content), not with recording artists or bands.

Are you maybe thinking of a different Gabrielle/Gabby connected to Skillet, or is there a specific project you had in mind?