Cosmic Girls Timeline

The fantasy romance drama "Dive into You," starring WJSN's Kim Ji Yeon (bona) and Park Seo Ham, premieres on September 26, 2026 at 10:30 p.m. KST and will be available to watch on Viki.

The fantasy romance Dive into You, starring WJSN's Kim Ji Yeon (Bona), will premiere on Channel A and be available on Viki.

The fantasy romance drama Dive into You, starring Bona (Kim Ji Yeon) and Park Seo Ham, premieres and will be available to watch on Viki.

SeolA (of WJSN/cosmic-girls) has parted ways with STARSHIP Entertainment; the agency released an official statement announcing her departure.

Eunseo (of WJSN/cosmic-girls) has parted ways with STARSHIP Entertainment; the agency released an official statement announcing her departure.

Channel A unveiled a new teaser and individual character posters for the drama Dive into You, which stars WJSN's Kim Ji Yeon (Bona).

Dayoung (WJSN) made her solo debut with the album 'gonna love me right?' and its viral lead single 'body'.

Dayoung (WJSN) released her first-ever collaboration single, "FLIRTY," featuring Jay Park; Dayoung participated in writing and composing the track.

WJSN member Dayoung is scheduled for a weekend set at Caribbean Bay during August as part of the Water Music Pool Party run.

Dayoung appeared alongside Jay Park at his Waterbomb festival performance on July 25.

Dayoung of WJSN won a Bonsang and was named Best Solo Artist at the Seoul Music Awards.

Dayoung (of cosmic-girls) was named as part of the first lineup for the 35th Seoul Music Awards, revealed on May 7, 2026.

Dayoung of Cosmic Girls performed on the April 11 episode of MBC's Music Core.

On April 3, Dayoung released a music video teaser for her upcoming single "What's a girl to do." The teaser reveals that Shiloh Jolie will make her debut in Dayoung's music video.

Dayoung released her second digital single "What's a girl to do" in April (year implied as 2026 based on article publication).

Dayoung announced her first-ever solo comeback and shared a sneak peek of the new single "What's A Girl To Do."

Dayoung (of cosmic-girls) released her second solo EP, What’s a Girl To Do, following the strong performance of her September solo debut "Body" and further establishing her as a solo artist (she also took part in writing on the new EP).

Dayoung made a surprise appearance during Jay Park's performance at the 2025 Melon Music Awards.

Dayoung's solo debut track "body" was included on best K-pop of 2025 lists compiled by Billboard, NME and The Hollywood Reporter.

Xuan Yi, a former member of WJSN (Cosmic Girls), went on hiatus in 2018 before later promoting with Rocket Girls 101 and transitioning into acting.