Lady Gaga has officially taken over her home town, setting up shop Wednesday night to play four shows at Radio City Music Hall. So far there have been reports of everyone from P. Diddy to Donald Trump to Barbara Walters (Lady Wawa?) in the crowd amongst the performer's beloved monsters. And people are really going crazy over these shows — laying down serious cash for tickets, taking off their pants, belting out their best ear-piercing screams as the Fame Monster arrives at shows, and even donning orbital headresses in homage. But it's not all fun and glitter, today the NY Press reports back about one fan's beatdown over tickets.

The NYPD say a 25-year-old Upper East Side man scored his tickets off Craigslist, only to meet the scalper on the 19th on the corner of 3rd Avenue and E 87th Street to get punched in his poker face! "The victim handed over $450 to the scalper, who gave him the tickets... the Gaga fan, unsure if the tickets were real, followed the scalper for two blocks and confronted him." It was at that point the scalper allegedly punched the fan in the face, running off with not only the money, but the tickets as well. The fan wasn't seriously physically injured, but we're sure his insides have a big sad :( This is getting uglier than the Sex and the City: The Movie premiere! If you do get inside, the international superstar has told fans: “Take my picture! I want to be a star.”

Related: The Gaga, who recently had to cancel some shows due to "exhaustion," showed up at Radio City with a burn mark on her arm and bruises on her legs (photos). Let's hope she doesn't go all Winehouse on us — she's come way too far for that!