On March 21, 2026, the video "[TUNESIDE] 'Proof I'm Alive' Choreography Lesson Behind #2" was uploaded to YouTube on the TUNEXX channel.
In this clip, TUNEXX shares behind-the-scenes moments from the 'Proof I'm Alive' choreography lesson, drawing major attention from fans. The members can be seen practicing with intense passion, and Inhu's standout dance moves especially steal the spotlight.
In the comments, many fans celebrated Inhu's appearance, sharing reactions like "Good to see you, Kim Inhu" and "OMG I HAD THE BIGGEST SMILE THE MOMENT THEY INTRODUCED INHUUU".
TUNEXX's 'Proof I'm Alive' showcases the group's teamwork and high energy, building even more anticipation through steady communication with fans.