Lady Gaga attends Tony Bennett's 90th birthday celebration at the Rainbow Room at Rockefeller Plaza in New York City on Aug. 3, 2016.

Lady Gaga is ramping up the art pop machine again. The singer surprised her Little Monsters on Wednesday morning (Aug. 17) by posting a series of Instagram teases that created a mosaic spelling out the name of her upcoming single, "Perfect Illusion." The singer said the song will be released in September and a source close to Gaga confirmed to Billboard that the track was produced by Mark Ronson, BloodPop, Tame Impala's Kevin Parker and Gaga; no other information was available at press time about a specific release date or accompanying album.

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Tony Bennett recently said he has been talking to Gaga about working on a sequel to their Grammy-winning Cheek to Cheek pop standards album. A spokesperson for Gaga said no additional details on the single were available at press time.

While not much is known about Gaga's follow-up to 2013's ArtPop, back in May producer Ronson posted an Instagram pic of Gaga with Bloodpop and Tame Impala's Parker in the studio with the caption "illusion."