AceShowbiz -

Kylie Jenner's nightmare of having an awkward run-in with ex Tyga turned out to be true. The exes couldn't avoid each other when they watched Kendrick Lamar's performance on Sunday, April 16. Kylie reportedly looked "very sad" after the two shared "an awkward hug."

During the show, Kendrick brought out Kylie's rumored fling, Travis Scott (II), to perform their collaborative track titled "Goosebumps". Tyga allegedly didn't know about Travis' surprise appearance, so he immediately left the venue in the middle of the song. "A bodyguard began pushing through the crowd with a flashlight to get Tyga and his friends away from the stage," an onlooker told PEOPLE.

It appeared that Tyga didn't leave the festival entirely as he headed back to the venue after Travis' performance. "After Travis exited the stage, Tyga emerged on the side nearest the fence to begin watching again, as ScHoolBoy Q took the stage to perform 'That Part' with Kendrick," the source added.

Meanwhile, Kylie had lots of fun with Travis as the two were getting closer at designer Jeremy Scott's Moschino x Candy Crush party. "Kylie and Travis made their way to a private table, where they were joined by friends and enjoyed the deejay," an onlooker told the publication. "After five minutes of being in a very crowded space, Travis got up and left the table, and Kylie followed him out with her friends following close behind her."