The close friendship between K-Pop's 1998-line continues!

On February 16, rookie girl group VIVIZ took home their first ever #1 trophy on a music program since debut on MBC M's 'Show Champion', with their 1st mini album title track "BOP BOP!".

The girls of course received congratulatory messages from fans all over the globe, as well as from their fellow K-Pop idol colleague, Seventeen's Seungkwan!

Seungkwan wrote on VIVIZ member Umji's Instagram on this day, "Congratulations!!! So proud, so proud." 

In response, Umji cutely wrote back, "Thank ya kiddo (emoji)."

Seungkwan also wrote to VIVIZ's SinB, "Congratulations on your 1st place win Eunbi (applause)(applause). Let's keep on promoting together happily haha. (I'm finally the sunbae now..? (emoji)(emoji))."

Here, SinB replied, "Yes, sunbaenim, thank you so much (wink). You keep on promoting happily and healthily too, this sunbaenim who is 4-months your senior will always root for you."

What a great friendship between fellow K-Pop idols!