The band FTISLAND marks the beginning of its new musical journey with its first digital single this year.

FTISLAND will release its digital single “THEORY OF HAPPINESS” on May 5th at 6 PM KST.
“THEORY OF HAPPINESS” is a Korean adaptation of the title track from its 11th Japanese single “シアワセオリー,” which features lyrical storytelling in FTISLAND’s signature hard rock sound and emotions. Recalling a volatile past, the lyrics evoke memories of upheaval and perhaps the most cherished moment to look back on.
“FTestination” is a combination of “FT” and “Destination,” reflecting the musical direction and goals FTISLAND intends to pursue in 2025. The release of “THEORY OF HAPPINESS” marks the beginning of this journey, and FTISLAND will continue to fill listeners’ playlists across various musical genres.
FTISLAND is constantly performing at various festivals and concerts, demonstrating their strong popularity and unparalleled presence. They are expected to continue their activities by presenting new music and colorful creations to their fans via FTestination.
Journalist: Shawn
Translator: Shawn
Source: SNS FTISLAND