On March 24, 2026, Kim Sung Kyu posted new photos on his official Instagram. The images preview the concept for his '2026 KIMSUNGKYU LIVE [LV4: LEAP TO VECTOR]' concert, a three-day run starting March 27. Wearing a black suit and holding a guitar, he projects commanding onstage charisma, posing with a focused expression amid music equipment.
Fans reacted passionately, leaving comments like "Oppa, I love you," "WOW," and "A concert in Japan too..." The concert is set to take place at Olympic Hall in Seoul's Olympic Park.