The 35-year-old singer and the 30-year-old 2 Broke Girls star broke up after almost two years of dating, according to E! News.
“It was a mutual breakup,” a source revealed to E! News. “They are still friends and care about each other, but it’s not the right time for them now as a couple.”
Josh and Kat made their first red carpet appearance together back in October at the 2014 Carousel of Hope Ball. Their last appearance as a couple was made at February’s 2016 Clive Davis Pre-GRAMMY Gala and Salute to Industry Icons.