Kourtney Kardashian was spotted partying with Justin Bieber again, amid dating rumors.

The Keeping Up With The Kardashians star was seen at The Nice Guy in West Hollywood on Friday. She later on headed to a private karaoke room in Blind Dragon, where she reportedly hung out with a couple of friends, including her rumored beau, Justin Bieber, US Weekly reported.

The 34 year old Kardashian was later seen leaving Beverly Hills Hotel The Montage at 4 in the morning. It is still not clear if she spent the whole night with the 21 year old singer, but it is believed that Justin often stays at the said hotel.

Kourtney is yet to comment about the latest news.

This is not the first time the rumored couple were spotted partying together. In October, they were pictured hanging out together at a West Hollywood club and at Universal Studios.

Kourtney and Justin were rumored to be dating for months, but they remained mum about it.

It was in July when Kourtney split from her long- time partner Scott Disick, after his highly publicized drinking spree and cheating scandal with girls, including his ex- girlfriend Chloe Bartoli in Monaco. The exes share three children- Mason, 5, Penelope, 3, and Reign, 9 months.

As for Justin Bieber, he is said to dating the sexy model Jayde Pierce, following the leaking of his nude photos. The pair sparked dating rumors after the 20 year old model was photographed vacationing in Bora Bora with the pop star.

But Justin denied the dating gossips and said to Ellen DeGeners show that they are just friends. While the singer continues to be fueling dating rumors with famous faces, the What Do You Mean singer was obviously more open to Selena Gomez rumors, purporting that they still have feelings for each other and will be getting back soon.