Blogger Perez Hilton guest-starred on the Tyra Show, which premieres today, where Tyra asks Hilton not to bad-mouth celebrities under the age of 18 for six months.

Tyra explained, “When you’re a kid, especially the kid of a celebrity, I don’t feel that they should be put in the public in a way to be made fun of. I feel they should be protected.” She then asked Perez to comply for a year, but the celebrity blogger only accepted a six-month deal instead.

In exchange for Tyra’s request, she invited Hilton to appear on one episode of “America’s Next Top Model” as a guest judge.

The episode, which airs on CW at 4pm today, was shot on August 18, just a few days Perez and Demi Moore had a Twitter war for doing what he has promised Tyra not to do.

A few weeks ago, Perez Hilton posted pictures of Demi’s 15-year-old daughter Tallulah partying out in LA. As expected, Demi Moore wasn’t amused and twitted away with “Clearly Perez Hilton isn’t taking violating child pornography laws very seriously. He might not but there are a lot of people who do.” As true Perez Hilton fashion, he answered Moore back with a warning to “Expect a letter from my attorney,” accusing the actress of ‘defaming’ him.