This is an archived article that was published on sltrib.com in 2012, and information in the article may be outdated. It is provided only for personal research purposes and may not be reprinted.

Life & Style Weekly is reporting that Katy Perry and John Mayer (formerly with Taylor Swift, Jennifer Love Hewitt, Jessica Simpson, and Jennifer Aniston) are "definitely" dating. Here is an excerpt from their e-mail blast:

Only a week has passed since Katy Perry and John Mayer were first spotted leaving the Chateau Marmont together on a date, but it's already official: The two are "definitely dating," multiple sources tell Life & Style. In fact, John and Katy didn't leave each other's side all weekend. They were inseparable at a wild house party and then at a pool party.

Saturday's wild bash, held at agent Michael Kives' apartment and also attended by Arnold Schwarzenegger and Jessica Chastain, among others, was quite the Hollywood scene — exotic animals, including an alligator, lemurs and raccoons, were rented for the party and situated throughout the apartment. Katy and John arrived around 8:30 p.m. and stayed close the entire night.

"They were standing on the terrace on the ground level and petting all the exotic animals," a partygoer tells Life & Style. "Katy loved the lemur and was trying to get it to sit on her shoulders. There was an alligator, a baby raccoon and other animals. Katy and John never left each other's side and were flirting and affectionate the entire time. Katy loved it!"

"Maybe he's a changed man, but Katy likes bad boys," says the source. "I can't imagine John's changed that much."