Who is Kathryn Lockhart? She has something to do with Katy Perry, right? Or Katy Perry’s boyfriend? And what’s her boyfriend’s name? Diplo something? And he’s been slagging on Taylor Swift and Lorde?

Let’s get you up to speed fast.

Katy Perry has been spotted out with this DJ named Thomas Wesley Pentz who calls himself Diplo. Diplo has worked with Justin Bieber, Britney Spears, Bruno Mars and others. He used to have a thing with rapper M.I.A.

He also used to have a thing with Kathryn Lockhart. Lockhart does event planning and location scouting in Los Angeles. Her company page says:

“My name is Kathryn Lockhart, and I dreamt about being a mother my whole life. I’ve always had a childlike imagination. Once I had my son Lockett, I was able to put more of my ideas to life, with him as my guinea pig. I found a love for planning all his parties and found that I was very good at it! Organizing, planning, and the whole creative process of planning a child’s party or event is not work to me, it’s fun!”

The baby Lockett she refers to is Diplo’s baby. Back in February he told Ask Men, “Now, I’m with an awesome girl with a baby, and I didn’t plan it, but I couldn’t ever ask for a better person to share this life with.”

And now Diplo and Kathryn Lockhart have another: Lazer Lee Louis Pentz. But at this point, they are not together, although reports are that he is involved with helping with and shopping for the baby.

Meanwhile, Diplo has also been busy dissing Taylor Swift and sparring via Twitter with Lorde.

Get Taylor Swift A Booty https://t.co/RpkB8JExSV

— dippity doo da (@diplo) November 12, 2014

“@lordemusic: @diplo should we do something about your tiny penis while we're at it hm” (the moment u realize she's a high school student)

— dippity doo da (@diplo) November 16, 2014

Perez Hilton now says that the feud is over.

Katy Perry seems to be staying out of the fray so far, enjoying her time in Australia, touring behind her album, getting photographed in a bikini.