According to E! News, the off-again, on-again couple was seen out joined by another couple, and they were behaving as a “couple in love.”
The source also stated that Perry, 30, and Mayer, 37, are “definitely” a couple again.
Last month, E! Online quoted an insider as saying that they are “over for good,” due to a “lack of emotional interest on his end.”
Katy Perry and John Mayer have been in an on-off relationship since 2012.