Joe Jonas and Gigi Hadid Break Up After Only a Few Months of Dating

The model and singer are no longer the "it" couple in Hollywood.

Joe Jonas and Gigi Hadid are no longer Hollywood's photo-friendly "it" couple.

After only a few months of dating, ET confirms that the singer and model have ended their summer relationship.

“It was not a dramatic breakup," a source tells ET. "They both were too busy and are working a lot the next few months. Before they dated, they were already good friends and they will definitely stay friendly. No bad blood there. It was amicable."

WATCH: Gigi Hadid Fights Back Against Body Shamers, While Joe Jonas Sweetly Supports Her

Joe and Gigi were first rumored to be dating in May. It wasn’t until September when Joe first opened up to ET how thrilled he was to watch his girlfriend walk the runway at NYFW.

"I was able to see her walk in Tommy [Hilfiger] and it was great," he said. "Just being able to support and see some of my favorite designers, it was great.”

WATCH: Joe Jonas And Gigi Hadid Pack on the PDA with Kisses in Paris

Up until about a week ago, the two seemed inseparable, packing on the PDA during a trip to Paris.

However, the two didn't don a couples' costume or even attend the same party during Halloween.

WATCH: Gigi Hadid Is Adorably Surprised When Asked to Walk in Victoria's Secret Show

Gigi, dressed as Sandra Dee from Grease, attended Heidi Klum's New York City bash solo. An eyewitness at the event told ET that she was with two other guys that appeared to be just friends of hers.

Meanwhile, Joe appeared to be dealing with the breakup through music. This past weekend, the 26-year-old dressed up as a sad clown and performed a cover of Adele's emotional new track, "Hello," with his new band DNCE. 

Joe had apparently been pining after Gigi for some time. In September, while answering fan questions on Periscope, the 20-year-old model revealed that he had asked her out years ago.

"We met at the GRAMMYS when I was 13 years old," Hadid revealed. "And he asked me to a baseball game, and I said, 'No.'"

Are you surprised by this breakup?