“X-Files” co-stars David Duchovny and Gillian Anderson got a little amorous at a music club in New York.

Duchovny and his band were onstage performing songs from his upcoming album, “Hell or Highwater,” when he invited Anderson onstage to provide back up vocals. After the song ended, Duchovny walked over to Anderson and planted a kiss on her.

See photos: 11 'X-Files' Villains We'd Love to See on the Limited Series

The pair played FBI agents Fox Mulder and Dana Scully on the hit Fox show from 1993 to 2002, and will reprise the roles in an upcoming reboot. Though their characters never hooked up onscreen, the two were often praised for their chemistry.

Fox announced Monday that the six-episode series will premiere in January. Former stars Mitch Pileggi and William B. Davis, who played FBI assistant director Walter Skinner and the Cigarette-Smoking Man respectively, will also return.

Also Read: 'X-Files' Star David Duchovny Says Cigarette-Smoking Man, Walter Skinner Are Returning to Series (Video)

Watch the video.

11 'X-Files' Villains We'd Love to See on the Limited Series (Photos)

With cult favorite Fox series "The X-Files" returning for a limited run, TheWrap offers a selection of baddies whose resurrection would be welcome.
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Cigarette Smoking Man: A primary antagonist for most the series, this chain smoker frequently stymied Mulder and Scully's X-Files investigations
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The Peacock Family: A family of inbred cannibals, two members eventually escaped Mulder and Scully and are still on the loose
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Chinga: This homicidal doll terrorized a small Maine town before Scully destroyed it. Or so she thought ...
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Alien Bounty Hunter: Also called "The Colonists," this shape-shifting alien race killed anyone who interfered with their plan to covertly control Earth
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The Black Oil: This alien virus was developed by the Colonists as a means to enslave the human race
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The Syndicate: A "shadow government" formed within the U.S. State Department and CIA, the group worked with the Colonists to ensure a "peaceful" takeover of Earth
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The A.I.: Seen in the episode "Kill Switch," this rogue artificial intelligence was capable of tracking and killing anyone via satellite
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The Fungus: In "Field Trip," Mulder and Scully fall victim to a hallucinogenic fungus that slowly consumes its victims
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Phyllis Paddock: A demon in the form of a substitute teacher, she killed several students and a PTA member after students summoned her with a séance in the woods near their school
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Beggar Man: This diminutive Indian mystic was capable of hiding inside his victims' stomachs and using them as a host before killing them
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Cecil L'Ively: This pyrokinetic murderer killed several British dignitaries before making his way across the pond to face off against Mulder and Scully
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