We know that Kendall Jenner previously linked up with Chris Brown for his "Freaky Friday" music video, that also heard the model sing about her vagina at the end of the track, but we didn't realize the two hung out and considered each other pals who wish each other happy birthday.

Kendall turned 23 a few days ago and among the numerous birthday wishes from her close friends, family, and fans, she also received a little video shout out from Chirs Brown. "HAPPY BIRTHDAY," Chris captioned a video of Kendall hanging out while he (or someone else) did a paparazzi take on the model sporting some black boots.  

Kendall dealt with some criticism for appearing in Chris' music video considering his violent past. "Kendall didn’t know how people were going to react to her doing this, so it was all really scary," a source said. "She’s been blindsided by backlash in the past, so now anytime she does anything outside the box she worries that it will somehow go wrong.”