The “teenage dream” singer started dating Mayer, 34, in this year’s summer.

The couple made an affectionate appearance together at Soho House in West Hollywood in June.

"She’s really upset about it," sources near the star reported the media.

"She is making it seem like it wasn't serious with John, but she is hurt,’ sources added.

Perry, 27, divorced comedian Russell Brand this year, and shortly dated rocker Robert
Ackroyd in spring.

However, Mayer has dated a string of stars, including Jessica Simpson, Jennifer Aniston,
Jennifer Love Hewitt and Taylor Swift.