Lady GaGa is reportedly set to appear in the second series of 'Wednesday'.

The 38-year-old singer-and-actress has landed a mystery cameo in the star-studded cast, led by Jenna Ortega's titular character in Netflix's 'Addams Family' spin-off, according to The Hollywood Reporter.

It's no surprise that Gaga will make an appearance on 'Wednesday'.

In 2022, after seeing Jenna's character do a dance to 'Goo Goo Muck' by The Cramps in season one, fans of the show started a viral TikTok trend where they'd perform the moves to a sped-up version of Gaga's song 'Bloody Mary', from her 2011 album 'Born This Way'.

It proved so popular that the song got a streaming boost and started heading back up the charts.

Gaga - who is referred to as Mother Monster, as her fans are called Little Monsters - even did her own video performing the spooky routine.

At the time, she wrote: "Slay Wednesday!

"You're welcome at Haus of Gaga anytime (and bring Thing with you, we love paws around here)."

At the Golden Globes last year, Jenna, 22, told reporters of the possibility of Gaga joining the show: “I’m sure Netflix would love that.

“If Lady Gaga were to be a part, [she and Wednesday] would have to be two monsters that understand each other.”

The 'Beetlejuice Beetlejuice' star recently revealed they are several episodes into filming the second instalment, but Jenna isn't sure whether it will feature another dance.

Asked if there will be a follow-up to her viral performance, the actress replied: "Not that I’m aware of … I’m not looking ahead at the schedule, but I fear maybe I’ll see something."

Meanwhile, Christina Ricci previously heaped praise on Jenna, describing her 'Wednesday' co-star as "amazing".

The 44-year-old actress starred as Wednesday in the 'Addams Family' movies in the early 90s, and she's been impressed by Jenna ever since they started working together on the spin-off.

Christina - who plays Nevermore Academy teacher Mrs. Marilyn Thornhill - told ELLE: "I loved being Wednesday.

"I’m very proud of that role. I also think Jenna Ortega is amazing. She is so brave, so cool, and really doing the part justice. Wednesday is her part now ... [and] those two things can be true at the same time!"