The 40-year-old and the kids wore Balenciaga's collection with Yeezy, with the former reality star sharing a glimpse of a zipper Balenciaga mask with matching gloves on social media.
The Keeping Up With the Kardashians alum was spotted next to the stage wearing a black catsuit with North wearing all-black too.
"Kim and Kanye getting back together, they had to break up so the album could come to life," one fan joked on Twitter.
"kanye’s always been so in love with kim and he still is and i know she is too i’m gonna lose my mind when they finally get back together," another wrote.
"I love Kim’s support for Kanye, I hope they get back together fr," a third fan gushed.
However, sources told TMZ that Kardashian's attendance wasn't a sign that the pair were working things out — as the divorce is still moving ahead — but the former flames still support each other as a family. Kardashian reportedly filed for divorce in February, after the pair tied the knot in 2014.
The KKW Beauty founder and the children attended West's previous album release event in July, with Khloé Kardashian reportedly in attendance too.
At the first listening party, the 44-year-old is said to have been emotional as the track "Welcome to my Life" played. "It’s a very deep, sad song about Kanye, with him reflecting on his marriage with Kim. He talks about the kids and mentions her taking everything. After he played this song he paused for like, two minutes, and cried. It was really sombre," a source told The Sun at the time.
Donda, named after West's late mother, is set to be the "Stronger" singer's tenth album, following the release of Jesus is King in 2019. Donda's release has been pushed back several times.
After the first listening event, West is said to have moved into the stadium to put the finishing touches on the album, which is reportedly slated to drop on Friday, August 6.