[2] In the "Being" agency, Show Wesugi (original vocalist with Wands) and Tetsurō Oda made song "Konomama Kimidake wo Ubaisaritai" (lit.
"Don't Avert Your Eyes"), written by Izumi Sakai and Tetsurō Oda, reached number-one position on the Japanese Oricon charts.
[7] In 1998, the band partly moved to BMG Japan under the Berg label, which consisted of the "Being" agency artists.
[8] In 2002, they released a cover version of Kyu Sakamoto's "Miagete Goran Yoru no Hoshi o", featuring solo violinist Diana Yukawa.
[13] On January 12, 2018, the guitarist and composer Tagawa has announced withdrawal from the band after 25th anniversary Budoukan Live finishes, which makes now left only two members keyboardist Yamane and vocalist Ikemori.
[14][15][16][17][18] On February 28 they released compilation album DEEN The Best FOREVER Complete Singles+ as part of their 25th debut anniversary, which will include their final song as 3 members "Journey".
[19][20][21] In August they've released three digital singles which includes completely new song Aloha and rearrangement of famous hits as Hitomi Sorasanaide and Power of Love with subtitle Jawaiian Style.
On February 6, the band as two-member will release their single Mirai Kara no Hikari (Light from the Future) which will be used as an theme song for popular video game series Tales's new chapter Tales of the Rays: Fairy’s Requiem, it will be the first single since Kimi he no Uta from 2017.
In October 2023, Ikemori himself as representative of Deen, made guest appearance at the Japan's Anime Song Festival held at Melaka, Malaysia.