According to reports in the US, the pair have decided to call time on their romance, but have remained good friends following their break up.
Joe and Gigi, who first went public with their romance six months ago, are said to have split recently, with a source telling E! News the couple's busy schedules were to blame.
26-year-old Joe has been focusing on his music and new band DNCE, while Gigi (who has just bagged herself a spot on the runway at Victoria's Secret Fashion Show with Kendall Jenner) is often seen travelling across the world, thanks to her modelling commitments.
"They still remain friends," the insider revealed. "But their schedules started effecting their relationship."
Likewise, a source reiterated to People that Joe and Gigi's split was amicable: "Nothing serious happened... it wasn't a dramatic break up."
Sob. Does this mean there will be no more double dating with Taylor Swift and Calvin Harris? Who could forget *that* oh-so-cute boat ride down the Thames with Karlie Kloss being the third wheel!
So far, both Joe and Gigi are yet to comment on such reports.
The pair were first linked in 2014 and denied rumours they were dating, before making their relationship public knowledge in June earlier this year. Joe was last seen supporting Gigi at the Uniting for a Lyme-Free World Gala in New York in October.
For exclusive competitions and amazing prizes visit Reveal's Facebook page NOW!