TOMORROW X TOGETHER gave fans a special gift ahead of their 4th debut anniversary.

At midnight on February 28 KST, TXT's version of "Happy Fools" was released on their official YouTube channel. This is part of TXT's '2023 DREAM WEEK' commemorating the 4th anniversary of their debut. The song "Happy Fools (feat. Coi Leray)" is originally from their 5th mini album 'Chapter of Name: TEMPTATION', with this new version exclusively filled with TXT vocals.

"Happy Fools" is a song that member Yeonjun worked to compose the melody and all members participated in writing the lyrics. It is a pop rap song that starts with a romantic Bossa Nova guitar and flute instrumentals. It is loved by listeners for its catchy melodies and witty lyrics. It entered the real-time and daily charts and peaked at number 8 on the US Billboard World Digital Song Sales chart.

The new version presents a new and different vibe from the original song by adding two new verses by Yeonjun, a chorus sung by the five members in the second half of the song, and humorous ad-libs. The new version of "Happy Fools" attracted attention by exuding a free-spirited yet innocent charm in the special clip released along with the sound source.