TWICE revealed Wednesday that they will be having a guest appearance and performance at The Tonight Show Starring Jimmy Fallon.

They posted a greeting where they announced that they will be performing their upcoming Full-English Single, The Feels on October 1 at The Tonight Show Starring Jimmy Fallon.

#TWICExJimmyFallon Trends online as the Girl Group Reveals Appearance on The Tonight Show Starring Jimmy Fallon

Immediately after the release of TWICE's video announcement, ONCEs have expressed their excitement for the girls' performance on the NBC show. They made the trend on Twitter with the hashtag #TWICExJimmyFallon.

Aside from that, other fans were speculating what will be girls' outfits during their first live performance of The Feels.

During the first appearance and the song's release, JYP Entertainment announced that the single will be released along with two remixes made by The Stereotypes and Yves V.

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TWICE Releases The Feels teaser, Excites ONCEs worldwide

Last September 7, TWICE released a teaser for the upcoming single The Feels. In the teaser, all of the girls wore colorful outfits and they exuded visuals that are pleasing to the eye.

Aside from that, the nine-member girl group dropped a TikTok video which spoils part of the song. JYP Entertainment also revealed that the upcoming single is a disco pop genre with a fast tempo.

(Photo : Twitter: @RepublicRecords)

The TikTok video could be short, but it is addictive and it gets attention once it starts playing. It raised the fans' excitement even higher.

ONCEs from around the world have always been supporting TWICE. Starting with MORE and MORE from their ninth mini album in 2020, followed by the 2nd regular album title track I Can't Stop Me and also their hit digital single Cry For Me which were all officially released in English.

Aside from that, Taste of Love, their 10th mini-album which was released on June 11, made a splendid job of entering the 6th place on US Billboard's Billboard 200.

It then reached the highest record in history among other mini-albums that were released by other K-Pop girl groups.

Watch TWICE's 'The Feels' Teaser Here:

TWICE members and ONCEs Celebrated Bunny Unnie Nayeon's Birthday

On September 22, TWICE's eldest member, Nayeon celebrated her birthday. She started the day by uploading a video called Nayeon-log so that she, her co-members and ONCEs could celebrate her birthday with each other.

(Photo : TWICE Instagram)

Then on the next day, she drops the Nayeon-log Behind The Scenes video where Jeongyeon can be seen supporting her while editing her vlog.

(Photo : Instagram: @twicetagram)

This has led to the speculation that Jeongyeon will be back soon from hiatus and she will be participating with her co-members for the entertainment activities for The Feels single.

TWICE's First Full-English single The Feels will be released on October 1 at midnight EST it will be released on the same day that the girls will appear on The Tonight Show Starring Jimmy Fallon.

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Written by Annie Barmaine.