Justin Bieber Parties with Sexy Models in NYC: British Beauty Louise Dove Tweets about Selena Gomez Ex's 'Diamond Gold Medallion' at 3 am, Escorted to Biebs' Hotel Room?

Justin Bieber's living the ultimate party life... apparently without on-and-off again girlfriend, Selena Gomez. The Biebs was spotted at NYC's elite basement club The Darby AND at the popular nightclub 1Oak on July 16... dancing and flirting it up with several sexy models. British beauty Louise Dove tweeted at 3 a.m. - "Justin Bieber is shaking a diamond gold medallion in 1Oak. Probably the best thing I've ever seen." Apparently, the "Believe" crooner even escorted two of the young ladies back to his hotel... after ditching on 18 reserved rooms at the Four Seasons in Philadelphia! Oh, my...

According to Hollywood Life, the 19-year-old pop megastar didn't want any photos taken during his late night rendezvous in NYC - but that didn't keep fans from tweeting about it!

@jacybaron: "Sitting next to Justin bieber at Darby... No big deal no photos tho. Not tryna get my phone broken in 8." 

That was tweeted at approximately 1:45 a.m.

Biebs and his crew then headed over to 10ak, where Bieber had no problem flashing his bling. Stunning Chanel fashion PR intern Mollye Rogel tweeted: 

@MollyeRogel: "Ending the night with @justinbieber shaking his gold chain over the peasants of 1oak #ifyouweremyboyfriend."

Then, Elite Model Management beauty Louise Dove tweeted at 3:12 a.m. -

@LouiseDove_: ""Justin Bieber is shaking a diamond gold medallion in 1Oak. Probably the best thing I've ever seen." 

According to the New York Post, Bieber took two models back to his hotel room at the end of the night. No word if Dove was one of the lucky ladies... Biebs' reps wouldn't comment.

Because of his crazy night out in NYC, Bieber allegedly had to cancel 18 room reservations at the Four Seasons in Philly. The hotel staff was NOT pleased. But PR director Christia Donahue recently told Hollywood Life:

"We don't comment on our guests, or would-be guests, so anything that you've read about Justin Bieber at our hotel is completely speculative. I'm not sure where the information is coming from because it's certainly not coming from anyone at our hotel, and as far as I know, it's not coming from anyone in his camp, so I really don't know where this information even originated."