On March 18, 2026, Kim Sung-kyu lit up his official Instagram with a new post, teasing a vocal challenge for ‘When I Think of You’ alongside Bae Woo-hee of Dal Shabet—instantly sparking buzz among fans. In the photos, Bae Woo-hee stands in a studio, gripping the mic and singing with laser focus, her intense expression stealing the spotlight. Fans flooded the comments with reactions like "Can’t wait to hear it live" and "You’re amazing as always—the best." Anticipation is soaring for Kim Sung-kyu and Bae Woo-hee’s collaboration.