When she was a child, Kasumi Toyama (played by Poppin' Party's lead singer, Aimi) felt a heart-pounding thrill every time she gazed at the stars, and she's been looking without success for something that could inspire the same feeling ever since. One day, she comes across a star-shaped guitar in a rundown pawnshop and, for the first time, discovers the thrill she's been searching for. Kasumi becomes determined to form an all-girl band, and her search leads her to four like-minded souls: Saya, Arisa, Rimi, and Tae (all brought to life by the members of Poppin' Party). Does this band have what it takes to make their dreams of stardom come true?

[Source: Sentai Filmworks]

Unaired episode included with the 7th Blu-ray volume.

Mini anime series featuring the girls from Girls Band Party.

[Source: MyAnimeList]

When she was a child, Kasumi Toyama (played by Poppin' Party's lead singer, Aimi) felt a heart-pounding thrill every time she gazed at the stars, and she's been looking without success for something that could inspire the same feeling ever since. One day, she comes across a star-shaped guitar in a rundown pawnshop and, for the first time, discovers the thrill she's been searching for. Kasumi becomes determined to form an all-girl band, and her search leads her to four like-minded souls: Saya, Arisa, Rimi, and Tae (all brought to life by the members of Poppin' Party). Does this band have what it takes to make their dreams of stardom come true?

[Source: Sentai Filmworks]

The bands of BanG Dream!, including Poppin’Party, Roselia and other fan favorites, are back in action and they’re ready to rock the world in this feature length music-driven spectacle! Join the bands as they take to the stage and perform their greatest hits in this exciting, star-studded and dreamy musical experience.

[Source: Sentai Filmworks]

The girl-powered bands are gigging again. That means Poppin’Party and other fan favorites are set to return for an all new season of BanG Dream! Now that Kasumi and the rest of Poppin’Party are taking charge of their own show, the sky’s the limit for their rockin’ musical ambitions and dreams of stardom. But they’ll have to contend with other bands looking for their big break, and their friendship will be put to the ultimate test as they rock their way to the top of the charts!

[Source: Sentai Filmworks]

Ren Nanahoshi is a lonely college student who isn't good at communicating with others. He remembers the thrill of watching a live band perform when he was young, and spent most of his days searching for his own identity. One day, while singing karaoke alone, two boys named Yuuto and Wataru discover Ren's singing ability. The two agree: "This is fate. Let's start a band!" Ren promptly runs away, but fate indeed steps in, and their journey begins.

[Source: MyAnimeList]

“Are you prepared to fully devote yourselves to Roselia?”

To reach the stage of “FES.“, Yukina Minato decides to form a band. Each holding their own convictions, the members of the band come together. The five girls now begin their journey to the top as Roselia... This is the story of their “promise” made to each other, from the start of the band to their challenge towards FUTURE WORLD FES!

[Source: official English website]

After overcoming numerous tribulations, the members of Roselia promised to appear on FUTURE WORLD FES.
It is now Autumn...

Through writing the lyrics of "Promise," Lisa has matured.
Watching the change of color in the autumn leaves, Yukina and Sayo expressed their resolve in a picture letter to their future selves.
Driven by the wish to do something for Roselia, Rinko has started to compose a new song.
"The remaining quests are the contest, the tournament, and FUTURE WORLD FES..."
Reflecting on their goals, Ako starts to feel anxious.

What view will the five of them see beyond FUTURE WORLD FES?

[Source: official website]

This time, 2 new bands will be joining “Poppin’Party”, “Afterglow”, “Pastel✽Palettes”, “Roselia”, and “Hello, Happy World!” on stage!
"Morfonica", a symphonic band with a fantasic world view, and "RAISE A SUILEN", a rock band declaring to be the best!

What will the 7 bands aim for on the "2nd Stage"?

[Source: official English website]

Compilation of the TV anime with added footage.

Poppin'Party, Roselia & RAISE A SUILEN have successfully completed their Budokan concert. A mysterious girl appears in front of Kasumi & friends, who are still basking in the afterglow of their dream stage. Their next stage will be... overseas?! Poppin'Party's dream has yet more to come!

[Source: Anime NYC]

Two-episode anime commemorating the 5th anniversary of BanG Dream! Girls Band Party!

The best way to fit in at a new school? Start a band! Anon has just transferred to Haneoka Girls’ Academy where girl bands are all the rage. But she started school late, so there aren’t many girls left to recruit. Then she meets her first friend and Haneoka’s misfit, Tomori, who’s hesitant to join. Still, Anon is determined to persuade Tomori and experience the true power of friendship and music.

[Source: Crunchyroll]

Two-part movie compiling the TV series with new footage.

"Will you give me the rest of your life?"
After losing everything in a single night, Sakiko Togawa reaches out toward an even deeper abyss, one that will drag everyone around her down as well.

Gathering the lives of girls burdened with their own troubles and desires, Sakiko raises the curtain on a perfect masquerade.

"Welcome to the world of Ave Mujica."

On a stage where sorrow, death, fear, love—even the solace of forgetting—are stripped away, will their masks be torn off and shatter into oblivion, or will they…

[Source: Bushiroad]