Here is what they had to say about it:
Play as everyone’s favorite maniacal tyrant-in-training…or at least his body double. With the Handsome Jack Doppelganger Pack for Borderlands: The Pre-Sequel, use the power of your good looks and charm to distract your enemies into submission. Or, just cut them down to size with your witty banter. Or just shoot them. That works too. Play as the hero that Pandora and Elpis deserve.
The Handsome Jack Doppelganger Pack is available now for PS3, Xbox 360 and PC.