Katy Perry and John Mayer are reportedly back together again. According to reports that are circulating Katy Perry and John Mayer probably never broke in the first place. There are also rumors that the breakup rumors were started by Meyer's ex-girlfriend, Taylor Swift.

Katy Perry, 30, and John Mayer, 37, broke up the last time in March 2015, according to HollywoodLife.com. Katy Perry and John Mayer have been dating on and off since 2012

Last week it was reported that Katy Perry and John Mayer split up but less than a week later, Katy and John were spotted vacationing at Yellowstone National Park.

The sim reported that witnesses said the Dark Horse singer and the blues guitarist appeared to be "head-over-heels" in love.

"They're spending a lot of time at his house talking over their feelings and trying to see if they can make it work," a source told The Sun.

New reports say Katy and John have been together on and off since 2008.  Last week, it was reported that Perry broke up with Meyer over "trust issues."

This will be the fourth time Katy Perry and John Mayer have gotten back together and sometimes they get good songs out of it. Meyer and Perry collaborated on the song "Who You Love."

"The reason they have split in the past is because Katy gets busy," an insider told RadarOnline.com.

"John can't handle the lack of attention, and she can't handle the trust issues she has when she's so far away. So they've learned that it's better to just take a break when they can't be in the same place.''

"They never stopped talking and being friendly while they were broken up. They are really excited about being together right now and spending as much time as possible... they have spent almost every night together this week," a source told told E! News.

"They seemed very comfortable together and kissed several times. It was a cold night and they held hands and John pulled her in close when she got cold."

"Although her friends have warned her to be careful, she is already ignoring all of the red flags. She is not listening to anyone and is going into this full force," an insider told Radar Online.