Battleborn is coming to Rock Band 4

The cast of Gearbox Software's hero shooter Battleborn is going to make an appearance in Harmonix's Rock Band 4, developers from Gearbox revealed at their PAX East panel today. Gearbox president Randy Pitchford and crew unveiled the above teaser image during their presentation but were light on details, other than to tease that Battleborn's Thorn and Miko would show up in Rock Band.

Gearbox said to expect more details on this unusual merger on Sunday. Harmonix has a panel of its own that day at 3:30 p.m. ET called "Rock Band: Present, Past and Future."

Battleborn's cameo in Rock Band 4 won't be the music game's first promotional crossover; Harmonix and Bethesda Softworks teamed up last year to bring Fallout 4's Vault 111 suit and Pip-Boy to Rock Band.