Moxxi is awfully sorry she forgot you the other day, but wants to make it up to you by giving you a Loverpalooza present same as the others.
Enjoy Krieg's celebratory Loverpalooza skin "IT'S WRONG ALL WRONG" — available in the Quick Change character customization station.
To learn more about SHiFT codes and how to redeem them, visit: //support.gearboxsoftware.com