Seventeen's Remarkable Development Over the Years

1. Big Debut Plan

Prior to their debut as Seventeen, they appeared on the reality TV show Seventeen Project: Big Debut Plan broadcasted on MBC between May 2-26, 2015 which concluded with the group's debut. During this showcase, they performed by sub-units; Performance Unit, Hip Hop Unit, and Vocal Unit.

2. Adore You (???)

"Adore U," the title track for 17 Carat quickly became the longest-charting K-POP album of the year in the US and made them the ONLY rookie album to appear on Billboard's "10 Best K-POP Albums of 2015" chart, an amazing feat.

3. Like Seventeen � Boys Wish Encore Concert (Performance Unit)

After their concert success, Seventeen held two more concerts in February 2016 titles Like Seventeen - Boy Wish Encore Concert. On February 14, they officially released their fan club name 'Carat.'

4. Q&A - Collab with Ailee(???)

Ranking 1st on Mnet's real-time chart as well as 5th on Melon's real-time chart, Seventeen reached out to their senior, Ailee, who quickly agreed to work with the rookie group without question. She stated that when Woozi reached out she told him she would agree to help without listening to the song. This became the first collaboration track with Ailee, one of Korea's best vocalists.

5. One Fine Day

Seventeen appeared on One Fine Day - 13 Castaway Boys filmed on Yeoseo Island where they received tons of love and happily took a break from their hard work.

6. Pretty U (???)

In 2016, Seventeen's first full-length studio album 'Love & Letter' was released on April 25, 2016, in two versions: 'Love' and 'Letter' versions. With their title track "Pretty U" they won their first ever win on a music show making them burst into tears at their first success they've been working so hard for.

7. Very Nice(?? NICE)

This lead single immediately followed Seventeen's 1st Asia Tour 2016 Shining Diamonds which included venues in South Korea, Japan, Singapore, Australia, and China. Incredibly catchy and fun dance move is something that caught fans' attention worldwide.

8. Boom Boom (??)

On December 5, Seventeen released their third EP 'Going Seventeen' in three versions that became their best-selling album of the year. Their title track "Boom Boom" shows off their manly attractiveness with great choreography.

9. Japan Concert: Say The Name #Seventeen

Between February 15-24 Seventeen held six concerts in Japan that attracted a total of 50,000 spectators despite not officially debuting in Japan yet.

10. Al1

On May 22, 2017, Seventeen released their fourth EP selling over 190,000 copies in its FIRST week. They completed their first world tour, 2017 Seventeen 1st World Tour "Diamond Edge" where they visited thirteen cities in Asia and North America.

11. Teen, Age / Clap

They recently returned to the scene with their second full album 'Teen, Age' and the title track "Clap". These boys continue to impress with their tremendous growth. I can't wait to see what they have in store for us in the future.

12. What's your favorite Seventeen moment?