You'll find out today that not alot has changed since the 90s.

Mimu is an aspiring pop idol hoping to win the audition to join her idol Yuri's Excellent Idols, before she can perform, she and the rest of the idols are dragged to Planet Bali Hawaii for a contest, will Mimu ever get to audition?
The early joke is Mimu struggles to audition, the problem is, she's not that interesting of a character.
The six other idols more than make up for it consisting of.
Layla - Rock Star.
Extra - Pianist.
Corvette - Dancer.
Palpu - Action Actress.
Ruka - Child Actress.
Shion - She says Ninja but I'm going with Japanese Drama.
The Idol Project cast is more than just a group of colourful characters but each one has a big name voice actress attached to them who were all prominent musical talents of the mid 90s, think what Idol anime is now and even VTuber culture as this is where it really started.
Despite the high production values that included games and an extensive soundtrack, Idol Project as an anime is too weird to make any sense of it, with only four episodes and Mimu taking up 70% of the screentime, all these characters never really get to shine and the appeal of big name actresses cannot be used in the dub, it's a fairly decent dub with some recognisable voices you may have heard in Digimon.
Hardly a crowd pleaser.
Final Verdict: It's production and voice talent are really high quality but the plot makes no sense and much of the cast rallies behind Mimu. Story just needed more care.