On March 23, 2026, ATEEZ marked Yunho's birthday with a new Instagram post—and fans immediately flooded the comments with love. The post sent birthday wishes to Yunho, and ATINYs celebrated his special day together online. The celebratory image drew an outpouring of support, packed with warm notes like "Happy birthday my happiness @yunou._.u" and "Happy birthdayyyyy." Fans continued to share sincere, heartfelt messages for Yunho.