Katy Perry's DJ boyfriend Diplo has welcomed his second son with his ex Kathryn Lockhart. Credit: John Sciulli/Getty Images for Sonos Studios

Daddy Diplo! Los Angeles-based DJ and music producer Diplo (Thomas Wesley Pentz) has welcomed his second son with his ex Kathryn Lockhart, Us Weekly can exclusively confirm. The little boy's name is Lazer Lee Louis Pentz, and he weighed 8 pounds, 10 ounces at birth. Major Lazer is an electronic music project created by Diplo.

Katy Perry's on-again beau, 36, is already dad to son Lockett, 4. A source close to the DJ said he is currently spending time with his ex and his little boy, buying baby supplies. 

When he's not embracing family life, Diplo is tangled up in a vicious Twitter feud with Taylor Swift and her pal Lorde. After he noted that "someone should make a kickstarter to get taylor swift a booty," Lorde shot back, "@diplo should we do something about your tiny penis while we're at it?"

He responded on Saturday, Nov. 15, calling Lorde a "high school student" before tweeting, "Disappointed that swift boat veterans didn't get my tiny dick a fundly going (enlarge my bae)." 

Diplo's feud with Swift was likely prompted by her song "Bad Blood," which was written about Perry.