Lovato, who came out as non-binary in May, and Cyrus attended the "Space Jam: A New Legacy" party at Magic Mountain in Valencia, Calif., with friends.
The "Camp Rock" star, 28, wore a black beanie, a hot pink shirt and tie-dye pants, while the "July" singer, 21, wore a white oversized sweatshirt, jeans with patches and a navy beanie.
The pair were also joined by Lovato’s longtime friend Matthew Scott Montgomery.
The "Sorry Not Sorry" singer and Miley Cyrus’ younger sister teamed up earlier this year to record the track "Easy" for Lovato’s latest album, "Dancing with the Devil… the Art of Starting Over."
A source told Page Six exclusively at the time that their behavior during the recording sessions had people wondering whether they were more than just friends.
"They’re very close and have been hanging out," said one source, who even suggested the pair might have begun a fling.
However, a second source called the rumors "weird" and insisted they were just friends.
"They have dinner sometimes, but they’re not romantic," the source said. "They got together for this song that sorta came together a bit last minute, and they hang out."
Cyrus and Lovato’s outing comes a week after the duo performed the collaboration for the first time during the YouTube Pride 2021 event. The Trans Chorus of Los Angeles joined the musicians for the performance.
Following their performance, Lovato shared a photo from their performance and thanked Cyrus for joining them onstage.
"Thank you @noahcyrus for closing out the night w me for @youtube’s pride 2021 celebration I’m so happy we finally got to sing our song together #Easy," Lovato captioned the snap.
Cyrus replied in the comments section, "thank you for having me yiu [sic] were effortlessly perfect and im never not in awe of u."
For more from Page Six, click here.