K-pop boy band BTS at UN urges world's youth to 'just speak yourself'

K-pop sensation BTS brought its star power to the United Nations on Monday, telling the world's youth to listen to their inner voice and resist the pressure to conform.

"No matter who you are, where you are from, your skin colour, your gender identity, just speak yourself," group leader Kim Nam Joon told a packed hall at the launch of a UN Children's Fund youth campaign.

Dubbed Generation Unlimited, the campaign to promote education, training and employment kicked off during the annual gathering of world leaders at the UN.

Wearing suits and ties, the septet joined UN Secretary-General Antonio Guterres, World Bank president Jim Yong Kim and Rwandan President Paul Kagame for the event.

Kim, who also calls himself RM, spoke of growing up in Ilsan, South Korea, imagining he was a superhero and being "just a normal little boy" until self-doubt settled in at the age of nine or 10.

"That was when I began to worry about what other people thought of me and started seeing myself through their eyes," he said.

"I tried to jam myself into the moulds that other people made."

The lead singer of the world's most popular boy band said there were times when he wanted to quit music, but he overcame his insecurities by listening to the "small voice that said, 'Wake up man, and listen to yourself'".

"I have many faults and I have many more fears, but I am going to embrace myself as hard as I can and I am starting to love myself," he added.

Among South Korea's best known and most lucrative musical exports, BTS made music history this year by becoming the first K-pop group to top the Billboard 200 music charts.

"BTS has become artists performing in huge stadiums and selling millions of records right now, but I am still an ordinary 24-year-old guy," said Kim.

"We have learnt to love ourselves, so now I urge you to speak yourself."

BTS is bringing its Love Yourself tour to New York for a series of concerts, including its first US stadium performance. - AFP