'They're one of the sole reasons for me doing what I do,' says DJ-producer
'We had Beyonce and Jay-Z in the front row mouthing along'
Lo-fi rockers explore Brooklyn before commanding sold-out show
Rocker has nixed five of eight scheduled concerts
'Parks and Rec' actress tries to steal trophy in 'unplanned' move
Documentary by singer's brother follows indie-rockers on tour
Eric Clapton, Keith Richards and more rock Madison Square Garden