And the Twitter war continues.

It all started when Katy Perry's rumored boyfriend and DJ, Diplo, posted a comment about Taylor Swift's backside, writing, "Someone should make a kickstarter to get Taylor Swift a booty."

The 36-year-old DJ posted the comment along with a link to his Fundly page.

As a response, Swift's BFF Lorde commented on Diplo's statement with a message that read, "@Diplo should we do something about your tiny penis while we're at it hm."

Over the weekend, Diplo fired back at Lorde's comment about his manhood, retweeting the "Royals" singer's note, along with his own commentary, which read, "The moment u realize she's a high school student."

He also posted a photoshopped tweet from Swift that read,"#Taylor'sAss is trending!!" to which he added, "U go girl." Then he followed it up with, "Disappointed the swift boat veterans didn't get my tiny d--- a fundly going (enlarge me bae)."

Lorde and Swift have not yet responded to his comments.

The feud between Swift and Perry reportedly began after Swift revealed the inspiration for her song "Bad Blood" to Rolling Stone.

"She did something so horrible. I was like, 'Oh, we're just straight-up enemies.' And it wasn't even about a guy! It had to do with business. She basically tried to sabotage an entire arena tour. She tried to hire a bunch of people out from under me," Swift said.

In happier news, Diplo's ex Kathryn Lockhart welcomed their second child, a boy named Lazer Lee Louis Pentz, on Sunday, Us Weekly reported. The newborn weighed in at 8 lbs. and 10 oz. He joins his four-year-old brother, Lockett.

A source told Us Weekly that the DJ "is currently spending time with his ex and his little boy, buying baby supplies."