Kings of the Concert
The high end perk the fans are aiming for is the 'BAND OF MERRRY MENFOLK!'- which is where you can have Louden Swain (Rob's band) play for you with Richard Speight Jr along for the ride.
'Kings of the Concert' offers lots of different perks including a ticket to the actual concert, to be put on in Phoenix if they succeed. They are also offering a ticket to a 'Stage-It' viewing of the concert for those that cannot make it to Phoenix.