MIKE&TRICIA'S HOLLYWOOD DIRT REPORT

KATY PERRY AND JOHN MAYER - BACK TOGETHER AGAIN?! Stop me if you've heard this one before: Katy Perry and John Mayer are definitely back together. Again.

The on-off couple has been breaking up and reuniting since they first began seeing each other in the summer of 2012.

After breaking up and reuniting a number of times since they first began seeing each other in the summer of 2012 -- with their last "official" split happening in February of 2014 -- they were spotted together this past weekend in Wyoming at their pals Girls star Allison Williams and College Humor founder Ricky Van Veen's wedding. 

According to People magazine, John and Katy were hand and hand at the event. "[They] looked happy," a source told the mag. "They held hands and sat next to each other during the wedding ceremony."

But it turns out, they are not back together again, and that holding hands thing apparently doesn't equal "dating" when it comes to these two.

A source explains to People, "They had both agreed to attend the wedding because they are dear friends with the bride and groom, but they are not back together. It was an emotional wedding, and they held hands but only because they will always care about each other."

The source continues, "They were happy to see each other...but they are not a couple. They're both going to go out with other people, and they want each other to be happy."

Well, that's that. Until next time Katy and John are seen anywhere within twenty feet of one another.