Gaga's birthday cake to Kelly Osbourne

NEW YORK — Amid her signature head-swimming whirl of masks, barely there leather and feather outfits, complicated headgear, and lurching dance moves, Lady Gaga proved one very simple point at Wednesday night's kickoff of her sold-out four-night Monster Ball stand at historic Radio City âm nhạc Hall: bạn can go trang chủ again.

For nearly two hours, Gaga put on an eye-popping clinic of perverse dance theatrics in a grand hall that was miles away, literally and figuratively, from the grimy các câu lạc bộ where she got her start playing to a handful of people just a few years ago.
    
Even...