Group KARA will present a "six-person full" version of the song that includes the voice of the late Koo Ha-ra, who passed away.

The agency RBW and DSP Media will pre-release the song "Hello" from the digital single "I Do I Do" on various music sites on the 16th.

"Hello" is an unreleased song that was scheduled to be released in 2013, complete with six members, including a Korean version recorded by Goo Hara during her lifetime.

Kara plans to release a new digital single, "I Do I Do," on the 24th, and plans to convey the well-being of a hot summer day to fans.