But that’s exactly what K-pop sensations BTS will be facing over the next couple of years.
The Dynamite stars have announced they will complete their compulsory military service in their native South Korean army.
The country's law states that able-bodied men must complete national service between the ages of 18 and 35.
Fans had hoped that the seven-strong boy band, worth between £105m and £130m, would be exempt from the service due to a clause that allows celebrities to postpone or opt-out of their compulsory duty.
But this week their management company, Big Hit Music, confirmed they would each serve their time, beginning with oldest member Jin, who will enlist after turning 30 in December.
The six other members, born between 1993 and 1997, will follow suit, with the band expected to reform in 2025.
So what will the BTS boys face as they swap their sell-out tours for the theatre of war? Here we look at the tough life of a South Korean soldier.
The day begins abruptly at 6.30am with a trumpet tune blaring over the public address system.