"ACTION" marks the group's first release of 2021, and is a response to last year's BLM protests that took place in the US.

CHAI's bassist and lyricist YUUKI says, "Seeing how the world came together during the protests really moved me. I wanted to dedicate that song to the year of action."

The band adds, "The world as we know it has changed, but even with that, it's still a world where nothing really changes. Wouldn't it be wonderful if there more "ACTION" rooted in happiness? Be the change that you want to see!... I'm going to be the pioneer in seeing the world I want to see, meeting the people I want to meet! We start off by expressing the fun in "ACTION" with this music video. Why don't you join us?! It's that type of song."

WINK will be CHAI's debut album for Sub Pop after signing to the label in October 2020, and will follow their 2019 album PUNK.

CHAI say of the album title, "A person who winks is a person with a pure heart, who lives with flexibility, who does what they want. A person who winks is a person who is free." YUUKI adds, "With this album, we’re winking at you. We’re living freely and we hope that when you listen, you can wink and live freely, too."

WINK will be the first album from CHAI to include contributions from outside producers (Mndsgn, YMCK) as well as a feature from Chicago rapper/singer Ric Wilson.

The album will also feature the band's previous single "Donuts Mind If I Do".

Tracklist:

1. Donuts Mind If I Do
2. Maybe Chocolate Chips (feat. Ric Wilson)
3. ACTION
4. END
5. PING PONG! (feat. YMCK)
6. Nobody Knows We Are Fun
7. It's Vitamin C
8. IN PINK（feat. Mndsgn)
9. KARAAGE
10. Miracle
11. Wish Upon a Star
12. Salty