Molly Shannon Returns to 'Will & Grace' -- See the Behind-the-Scenes Pic!

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The actress appeared as Will and Grace's neighbor in five episodes of the sitcom from 1999 to 2004.

Val Bassett is back!

Molly Shannon has returned to Will & Grace -- and Megan Mullally posted the proof to Instagram on Friday. 

"It’s @theofficialsuperstar week at #willandgrace! #mollyshannon is back as Val - it’s SO FUN to have her on set, it feels like vacation ? the episode will air after the first of the year ⌛️ love you, moll!!!!" she captioned a pic of herself, Shannon and Sean Hayes on set. "????????☀️? @seanhayes too!"

"Yesssss!! @nbcwillandgrace," Shannon wrote alongside a pic of her script on Thursday.

Shannon made her first appearance on the sitcom in 1999 as Val, a memorable neighbor of Will (Eric McCormack) and Grace (Debra Messing), who became a stand in friend for Will when Grace was too busy, and went on to stalk Jack (Hayes) after seeing his one-man show. She appeared in four more episodes until 2004. 

ET caught up with Shannon in January, where she revealed that she was hoping she'd be able to return for the series' reboot. 

"[It's] so exciting," she said of the show getting a second life. "Megan and Sean are good friends of mine. Debra, the whole cast is so wonderful, Eric McCormack -- it's the best news ever!"

See more in the video below.