FANTASTICS released "BACK TO THE MEMORIES The Best" on September 18, a 22-track collection of covers performed throughout the FUN! FUN! FANTASTICS TV series and its accompanying stage production BACK TO THE MEMORIES.

Since FUN! FUN! FANTASTICS first aired on Nippon TV in 2021, the group has performed songs spanning Japan's Showa, Heisei, and Reiwa eras. The new album brings those performances together, including "Kimi ga Iru Dake de," "WON'T BE LONG," "Natsumatsuri," "Get Wild," "Zankoku na Tenshi no Thesis (A Cruel Angel's Thesis)," "HOT LIMIT," "Gakuen Tengoku," and "One Night Carnival."

Finger 5's "Gakuen Tengoku" has been part of the project since its beginning and has become one of the songs closely associated with the series.

The album arrived just ahead of BACK TO THE MEMORIES Matsuri, held at K-Arena Yokohama on September 19 and 20, with guest appearances by Nanase Aikawa, TRE, and LIL LEAGUE.

FANTASTICS will next perform at Tokyo's Yoyogi National Gymnasium on September 26 and 27 as part of their FANTASTICS LIVE TOUR 2026 'SUNFLOWER.'