ONCE and Reveluv are collectively rejoicing after a fan posted on their Instagram that they saw TWICE‘s Jihyo and Momo at SM Entertainment.

OMG MY FRIEND SAW JIHYO AND MOMO AT SM ENTERTAINMENTD APPARENTLY THEY WERE FILMING SOMETHING OMFG ARE WE GETTING A POSSIBLE RV x TWICE COLLAB OMG pic.twitter.com/fywmtkYZww — 🏹☁️ (@cloudychaes) December 12, 2019

According to the fan, Jihyo and Momo walked into SM Entertainment, and the fan believes they were there to film some kind of video.

As it is the end of the year, it is the time of year-end festivals and ceremonies, with SBS, KBS, and MBC each holding their own K-Pop festival.

As of now, both TWICE and Red Velvet are confirmed to attend the SBS and KBS song festival, as MBC has not yet released their lineup. Many fans are theorizing that the TWICE members will have some kind of collaboration with some Red Velvet members.

twicevelvet special stage for either sbs/kbs/mbc gayo i planted the seed https://t.co/xSOJAzzG5i — tita 🥀 (@joyisthetics) December 12, 2019

Could be a collab for one of the Gayo Daejuns? https://t.co/u8yZ2jevvn — BLIИKTWIƆE™ (@MlNACHAEYU) December 12, 2019

OMFG IS IT TWICEVELVET https://t.co/y2eS7CgbDL — kyw (@kyw_428) December 12, 2019

TWICEVELVET COLLAB WE BETTER GET THIS 🙌 https://t.co/ZmGQxCtI3v — ra♡ RVF FINALE 🎆 (@luvsforjoy) December 12, 2019

TWICEVELVET NATION MAKE SOME NOISE https://t.co/4jJokNhxKM — #TheReveFestivalFinale (@oneitluvs) December 12, 2019

Back at KBS’s Song Festival in 2016, Red Velvet and TWICE teamed up with GFRIEND and I.O.I for a special performance of Girls’ Generation‘s “Into the New World”.

In 2017, Dahyun and Nayeon were scheduled to team up with Irene and Seulgi for a 2017 rendition of Fin.K.L‘s “Now” at the 2017 SBS Gayo Daejeon. However, Irene and Seulgi dropped out of the collaboration due to Jonghyun‘s sudden passing.

Last year at the 2018 SBS Gayo Daejeon, Momo, Chaeyoung, and Tzuyu teamed up with Irene, Seulgi, and Joy to perform S.E.S‘s “Dreams Come True”.

What could their potential collaboration this year bring?!?