K-pop idols who almost didn’t debut at all, from BTS’ Jimin and Twice’s Tzuyu and Momo, to Red Velvet’s Seulgi, Super Junior’s Heechul and Got7’s BamBam

• Red Velvet’s Seulgi endured a gruelling seven years as a trainee before being picked for Red Velvet – and almost gave up in the meantime
• BamBam was originally thought to be too young for Got7, while Super Junior’s Heechul was kicked out of SM Entertainment because of his attitude