TWICE have announced a series of events to celebrate their 6th anniversary.

The anniversary celebrations will kick off with H6ME PARTY with 6NCE. The livestream will be held on V LIVE and will begin at 9 PM KST (8 AM EST, 8 PM SGT/PHT). 

TWICE 6th Anniversary: H6ME PARTY with 6NCE

2021.10.20 WED 9PM (KST)
2021.10.20 WED 8AM (EST)

on V LIVEhttps://t.co/k0qImPIvZl#PresentForONCE#ONCEcomesbeforeTWICE#ONCE #원스 #TWICE #트와이스

— TWICE (@JYPETWICE) October 18, 2021

The 'Alcohol-free' act also shared a calendar of the different events to take place on their 6th birthday includinga "present for ONCE" on 21 October and a "6th-anniversary mock exam" on 22 October.

ONCE & TWICE
6th Anniversary Timetable#PresentForONCE

🍭원스와 트와이스의 6살 파티 시-작!🎂
Happy ONCE & TWICE Day🎊#ONCEcomesbeforeTWICE#ONCE #원스 #TWICE #트와이스 pic.twitter.com/1tMt3rWgkU

— TWICE (@JYPETWICE) October 15, 2021

Apart from announcing the upcoming livestream, the 'The Feels' act also released a video titled To ONCE From TWICE which featured the members writing letters and expressing their gratitude to ONCE (TWICE's fans). Check out the handwritten letters here:

ONCE & TWICE 6th Anniversary

To ONCE From TZUYU 💌#PresentForONCE#ONCEcomesbeforeTWICE#ONCE #원스 #TWICE #트와이스 pic.twitter.com/WPzTCMoE3U

— TWICE (@JYPETWICE) October 18, 2021

ONCE & TWICE 6th Anniversary

To ONCE From CHAEYOUNG 💌#PresentForONCE#ONCEcomesbeforeTWICE#ONCE #원스 #TWICE #트와이스 pic.twitter.com/PKdyQy9xeQ

— TWICE (@JYPETWICE) October 18, 2021

ONCE & TWICE 6th Anniversary

To ONCE From DAHYUN 💌#PresentForONCE#ONCEcomesbeforeTWICE#ONCE #원스 #TWICE #트와이스 pic.twitter.com/mZC1W9k2IF

— TWICE (@JYPETWICE) October 18, 2021

ONCE & TWICE 6th Anniversary

To ONCE From MINA 💌#PresentForONCE#ONCEcomesbeforeTWICE#ONCE #원스 #TWICE #트와이스 pic.twitter.com/EnLnUHZffK

— TWICE (@JYPETWICE) October 18, 2021

ONCE & TWICE 6th Anniversary

To ONCE From JIHYO 💌#PresentForONCE#ONCEcomesbeforeTWICE#ONCE #원스 #TWICE #트와이스 pic.twitter.com/XPOZCZPoYE

— TWICE (@JYPETWICE) October 18, 2021

ONCE & TWICE 6th Anniversary

To ONCE From SANA 💌#PresentForONCE#ONCEcomesbeforeTWICE#ONCE #원스 #TWICE #트와이스 pic.twitter.com/dnFqNbVNOV

— TWICE (@JYPETWICE) October 18, 2021

ONCE & TWICE 6th Anniversary

To ONCE From MOMO 💌#PresentForONCE#ONCEcomesbeforeTWICE#ONCE #원스 #TWICE #트와이스 pic.twitter.com/S10nSPILw2

— TWICE (@JYPETWICE) October 18, 2021

ONCE & TWICE 6th Anniversary

To ONCE From JEONGYEON 💌#PresentForONCE#ONCEcomesbeforeTWICE#ONCE #원스 #TWICE #트와이스 pic.twitter.com/Z1HtLNSlaG

— TWICE (@JYPETWICE) October 18, 2021

ONCE & TWICE 6th Anniversary

To ONCE From NAYEON 💌#PresentForONCE#ONCEcomesbeforeTWICE#ONCE #원스 #TWICE #트와이스 pic.twitter.com/SimKKtXUWt

— TWICE (@JYPETWICE) October 18, 2021

In a separate tweet, the group also invited fans to share their replies with the members.

ONCE & TWICE 6th Anniversary#ToTWICE Board OPEN💌
👇Write your reply herehttps://t.co/vQXVcWhNo8

Send your replies to TWICE💕#PresentForONCE#ONCEcomesbeforeTWICE#ONCE #원스 #TWICE #트와이스

— TWICE (@JYPETWICE) October 18, 2021

The group dropped their first English single titled 'The Feels' earlier this month which marked TWICE's first entry into Billboard's Hot 100 chart. Their highly-anticipated third studio album Formula of Love: O+T=<3 is slated for release on 12 November.

Tune in to their 6th birthday party on V Live:

Listen to TWICE's 'The Feels' here: