He will be celebrating his birthday on June 7 during the show, as well as commemorating H.O.T's 21st anniversary, gaining much attention from fans. Fellow friend and H.O.T member Lee Jae Won will also be making a surprise appearance, calling for a special stage. 

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Both Tony An and Lee Jae Won are well known to be best friends and even went on to form trio group JTL after H.O.T separated. Recently, Tony encouraged his friend to return to the entertainment industry.

Tickets for Tony An's first solo concert was sold out in three minutes as the singer expressed his deep gratitude.