Kylie Jenner parties with Justin Bieber and A$AP Rocky following split from Tyga

Kylie Jenner is freshly single and ready to mingle!

After a source confirmed to ET that the 18-year-old Keeping Up With the Kardashians star split from her boyfriend, rapper Tyga, on Friday, Kylie spent the night party hopping with a few of her celebrity pals.

PHOTOS: Kylie Jenner May Be Not-So-Subtly Snapchatting About Tyga Breakup

Kylie started her night out with Justin Bieber at The Nice Guy in West Hollywood, California, the same swanky restaurant-lounge where Tyga celebrated his 26th birthday a night earlier. As ET previously reported, Kylie was not in attendance.

Wearing an all-black ensemble that consisted of a fitted long-sleeved tee, high-waisted skinny jeans and a leather jacket, the reality TV star seemed to be in good spirits.

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Kylie then hopped into Bieber's escalade and, eventually, they both ended up at Hyde Sunset, where Bieber, who is a longtime friend of the Kardashian and Jenner clan, performed a few songs off his Purpose album.

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WATCH: A Look Back at Kylie Jenner & Tyga's Most OMG Relationship Moments

See a snippet from his performance in the Instagram video below.

PHOTOS: Justin Bieber Reunites With Selena Gomez

Later in the night, Kylie was snapped leaving the club without Bieber, piling into the same car as 27-year-old rapper A$AP Rocky.

FJRNEWZ/Photog Group/Splash News

Earlier in the night, Bieber reunited with his on-again, off-again ex-girlfriend, Selena Gomez. The two were spotted at the Montage Beverly Hills Hotel in Los Angeles, where Bieber adorably serenaded Gomez at the hotel bar with "My Girl" and "Sorry."

NEWS: Kylie Jenner Opens Up About Dating Rapper Tyga

News of Kylie's split with Tyga came as a surprise to many, especially after she had just gushed about her former beau on her website Monday.

"Everyone who knows me, knows I've always been a relationship girl," she said. "I've never believed in the idea of casual dating or being with two people at once. I feel like I only have room for one person in my heart and I want to give whoever I'm with all the attention they deserve."

Photos of Kylie Jenner's best fashion moments:

According to reports, sources say that Tyga initiated the breakup after pressure from the Kardashians, adding that the cause of the split was "something he did," although the devastated rapper "denies doing anything."

According to his latest Instagram post, however, he's not letting heartbreak get in the way of his career.

The "Rack City" singer shared a photo of himself posing in front of a beautiful view of the Los Angeles skyline on Friday, simply captioning it, "Focused."

Kylie and Tyga were dubbed a "controversial couple" ever since they confirmed they were dating in August, around the time Jenner turned 18. Watch the video below to hear more on some of their most outrageous moments together.