Sevenus

Sevenus (stylized in all caps) is a South Korean male duo consists of Heejae and Ireah under PCS Entertainment.

On the survival competition show Peak Time, Heejae and Ireah participated as two members under their former group name Masc (stylized in all caps). After finishing in second place, it was announced on May 3, 2023 that they had signed an exclusive contract with PCS Entertainment and would embark on their new start and reform the group as a duo. On May 9, 2023, the duo announced they would change their name to Sevenus. The "seven" holds meaning to them because they were Team 7:00 while on the show, and being with the fans is referred to in the word "us".

2016–2020: Masc debut, activities and disbandment
Masc officially debuted as a four-member group comprising Heejae, Woosoo, 26, and ACE under JJ Holic Media on August 19, 2016. At the same time, the group released their first mini album Strange, including a lead single of the same name.

The group released its second single, "Tina", on February 4, 2017. Ireah joined the group as a new member along with Moonbong, Doeun, and Chibin, and they were introduced with the release of Masc's third single, "Do It", on October 12.

In July 2018, Chibin alleged that ACE had assaulted him, leading to both members leaving the group. Soon after, member 26 left the group to focus on a career in film. In October, the group announced it would resume activities with four members: Woosoo, Heejae, Ireah, and Moonbong.

Masc released the single "Maschera" on May 27, 2019. That year, the group toured South America in May and Europe in June and July. On October 18, 2020, the group announced their disbandment through a YouTube video.

2023–present: Peak Time, reformation and Summús
In February 2023, members Heejae and Ireah first appeared as a singing duo on the JTBC reality competition show Peak Time. The pair were introduced in the show as Team 7:00, as the show's contestants were represented with an hour of the day. They revealed their group name as Masc during the show's final episode in April, and they ultimately came in second place. In May, they signed with PCS Entertainment and announced they would reform the group as a duo and promote it under the new name, Sevenus.

Sevenus released their debut single album Summús on July 31, with "Wonder Land" as the lead single.

Members

 * Current members (as Sevenus)
 * Heejae
 * Ireah


 * Past members (as Masc)
 * Woosoo
 * 26
 * ACE
 * Doeun
 * Chibin
 * Moonbong