Niall Horan shared a selfie with a larger than life Selena Gomez! Horan posted a photograph with a poster of the "Back To You" singer to his Instagram story.

"Hello there Sel," Horan captioned the new snap, which sparked even more speculation among fans that the musicians are dating.

The dating rumors began last week when the two were spotted out to eat with friends and when Gomez shared her support of Horan's new song, "Nice to Meet Ya" on her Instagram story. "This came out like 5 min. ago... and I'm pretty sure you need to download," she wrote.

"Selena and Niall are not dating and have been hanging out as friends," an E! News insider shared. "They have always been good friends and have kept in touch throughout the years."  Could a collaboration be in the works for the pair? "They both always have been very supportive of each other's music and have talked about collaborating before," the insider said.

Horan and Gomez were first rumored to be dating in 2015 after eyewitnesses at Jenna Dewan's 35th birthday party said they saw the pop stars kissing. Gomez later denied that they were romantically involved. When asked about the dating rumors Gomez set the record straight, "Oh my god! No. I love him, I always have. He's amazing," she told Entertainment Tonight.

See Horan's selfie, below!

Selena Gomez's Best Red Carpet Photos

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