Los Angeles, California - Travis Barker's ex-wife Shanna Moakler has once again stirred up some drama with the Blink-182 drummer's current wife, Kourtney Kardashian. Here's everything we know about the feud!

On Thursday, Shanna Moakler seemingly shaded Kourtney in a now-deleted TikTok comment.

According to vigilant fans who screenshotted for posterity, the former Miss America USA champion appeared to diss a video clip of her own kids – Atiana (27), Landon (22), and Alabama (20) – seen posing on a red carpet with Travis and Kourt this week.

They were all at the glitzy premiere for the documentary Travis Barker: Louder Than Fear.

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"Where are her children?" asked Shanna, per a fan screenshot.

The Poosh founder's own biological kids with her ex Scott Disick – Mason (18), Penelope (14), and Reign (11) – were absent from the screening. Her 2-year-old son Rocky with Travis was also MIA.

Fans defended the reality star, saying that they were all 18 or under and should not have been on a red carpet anyway.

Still others called the pageant queen "petty" and "bitter" about Kourtney and Travis' lovey-dovey relationship.

Notably, Kourtney's kids with Scott were also absent from the couple's romantic beachside marriage proposal – something that young Penelope was seemingly upset about after the fact, since all of Travis' kids and the Kar-Jenner elders had been invited to watch.

Shanna last threw shade Kourtney's way in February, when she took an apparent dig at her kids' stepmom's parenting methods.

"At certain times, I felt, 'Wow, if I had your kids, I wouldn't be doing some of the s**t you're doing with my kids,"