Back in March, Diddy announced via Twitter that he loved the Arctic Monkeys so much that he was planning on joining them. On Monday night at New York's Highline Ballroom, he didn't quite make it on stage but seemed content enough dancing in the crowd as the Sheffield four-piece played an intimate show in front of 700 fans. Clearly thrilled at the band's performance, the Bad Boy CEO grooved through their hit single 'I Bet You Look Good on the Dance Floor.' And did he.

Fresh from their slot at All Points West, the Arctic Monkeys spent much of their set trying out new material from their forthcoming album 'Humbug.' Although the album, produced in part by Queens of the Stone Age singer Josh Homme, signals a turn into darker, moodier realms, the band turned in a surprisingly muscular performance, airing a total of six fresh cuts including 'My Propeller,' lead single 'Crying Lightning' and a frighteningly heavy version of the Nick Cave's 'Red Right Hand.'

Despite the unfamiliarity of much of the material, the band's rabid following, Diddy included, were euphoric throughout. The biggest cheers of the night, however, were reserved for classics like 'View From the Afternoon' and 'Leave Before the Lights Come On.' The band continues its trek with a Wednesday gig in Boston, and two in Chicago, including Lollapalooza.