Selena Gomez and The Weeknd Reunite at Club, Treated to Impromptu John Mayer Show

Looks like Selena Gomez and The Weeknd are enjoying low-key get-togethers.

The rumored couple was spotted at Tenant of the Trees, a club in Silver Lake, California, on Thursday night. Although the two didn't pose for a picture together, The Weeknd did strike a pose with the club's designer and co-owner, Reza Fahim, while Gomez was spotted in a picture with DJ Allie Teilz. Teilz was also tagged in Fahim's Instagram photo with The Weeknd.

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An eyewitness tells ET that Dave Chappelle and John Mayer were also at the star-studded club on Thursday night, where they treated the crowd to an impromptu jam session. Chappelle arrived at the club around 1 a.m., the eyewitness says, with Mayer joining him a half hour later and keeping the bar open until 3 a.m. At one point, Chappelle tried to hand the mic to the "Starboy" singer, the eyewitness notes, though he declined.

Another eyewitness tells ET, "When [Chappelle] showed up around 1 a.m. and got up on stage to MC, the place turned into a real party."

Chappelle and Mayer -- who interestingly enough, used to date Gomez's close pal, Taylor Swift -- are longtime friends. Mayer appeared on Chappelle's Show in a memorable 2004 skit, and the two have been known to perform together onstage.

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Gomez, 24, and The Weeknd, 26, first sparked dating rumors earlier this month, when they were snapped kissing in Los Angeles. Since then, the two have stayed mum on the nature of their relationship, though tellingly, The Weeknd's ex, model Bella Hadid, unfollowed Gomez shortly after the kissing pics surfaced.

The Weeknd and 20-year-old Hadid had a run-in on Wednesday, when they both attended a memorial concert in honor of A$AP Yams at Madison Square Garden in New York City.

Meanwhile, Gomez stepped out in an adorably quirky outfit on Thursday in Los Angeles, rocking a Coach dinosaur sweater. The "Hands to Myself" singer was named the new face of Coach last month.

Watch below:

-- Reporting by Katie Krause

Selena Gomez Steps Out in Quirky Outfit After The Weeknd and Bella Hadid Have Public Run-In

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