The mother of three appears on 'WWHL' with her sisters Kim and Khloe Kardashian.
The model's musician dad, Lionel Richie, also shared his grief on Instagram.
The trio enjoyed a brief getaway to Mexico earlier this month.
Kardashian and Disick's two sons, Reign and Mason, turned a year older on Dec. 14.
The GRAMMY winner stepped out in support of the organization's work to combat HIV/AIDS.
The reality star beared a remarkable resemblance to the 20-year-old model in an Instagram pic her sister Khloe shared on Sunday.
The 'Keeping Up With the Kardashians' star reveals why she didn't ban Thompson from True's birth, despite cheating reports.
A source tells ET that the group was 'talking and laughing' while enjoying a meal at Craig's in Los Angeles.
Coincidence?
The couple looked sharp while taking in the local festivities in Australia.
The couple hit the town in color-coordinating outfits.
The pair was in Vegas in part to catch what turned out to be a chaotic UFC 229.
The rapper brought her mama to watch the runway alongside Sofia Richie, Amber Heard, Kate Beckinsale and more.
She wore five outfits in two days!
