* ActorAllusion: Azusa has one in the anime, though not to [[Creator/ChiakiTakahashi her seiyuu's]] previous roles but her previous job as a gravure idol. Azusa was asked to do a gravure idol audition and was asked to pose. Cue MaleGaze. On boobs.
** Also in the anime, Haruka smacked herself in the face with a box lid on national TV. Her seiyuu had done the [[http://www.youtube.com/watch?v=qDvD6TDbOho exact same thing]] on an online web show several years ago.
** Iori will sometimes cry out "Urusai urusai urusai!" [[labelnote:translation]]"Shut up, shut up, shut up!"[[/labelnote]] That's Shana from LightNovel/ShakuganNoShana's catchphrase, which is commonly quoted by other characters of [[ShanaClone the same general archetype]]. ''Especially'' if they [[Creator/RieKugimiya share the same voice actor]] - which in this case they do.
* BonusEpisode: The ''Live For You'' and ''Shiny Fiesta'' [=OVAs=] came bundled with their respective games.
* DuelingShows: The anime aired in the same season with... VisualNovel/UtaNoPrinceSama. Moreover:
** The protagonist of [=UtaPri=] is named Haruka '''''Nana'''''mi. The girl considered as the main character of [=iM@S=] is named Haruka '''''Ama'''''mi.
** Both shows feature twins, although Shou's twin brother Kaoru does not appear in the anime.
** Tokiya and Chihaya are quite alike in demeanor and looks.
** Both shows are centered on music and showbiz, with [=iM@S=] on the more realistic side of the scale compared to the loftier fantastical [=UtaPri=] side of the scale.
* HeyItsThatVoice:
** [[Creator/AsamiImai Chihaya]] - [[VideoGame/BlazBlue Tsubaki Yayoi]], and [[SteinsGate Makise Kurisu]]
** Haruka - [[OniichanNoKotoNankaZenzenSukiJaNaiNDakaraNe as another Haruka]] and [[TheDitz Nakatasugawa]] [[HoshizoraEKakaruHashi Ui]]
** [[Creator/AsamiShimoda Ami/Mami]] - [[{{Vocaloid}} Rin & Len Kagamine]], [[BGataHKei Yamada Chika]] and [[KyouNoGoNoNi Koizumi Chika]]
** Yukiho - [[MahouSenseiNegima Akira]]. If we go by her [[Creator/YurikaOchiai previous voice]], it's [[VideoGame/DisgaeaHourOfDarkness Thursday the Robot]]
** [[Creator/ChiakiTakahashi Azusa]] - [[VideoGame/BlazBlue Litchi Faye-Ling]], [[OtomeWaBokuNiKoishiteru Takako]] and [[VisualNovel/SchoolDays Nanami]]
** [[Creator/RieKugimiya Iori]] - [[VideoGame/{{Persona 4}} Rise Kujikawa]], [[Anime/{{Mobile Suit Gundam 00}} Nena Trinity]], [[{{Manga/Gintama}} Kagura]] and lots and lots of ShanaClone. [[PigeonholedVoiceActor Need we say more?]]
** [[Creator/HiromiHirata Makoto]] - [[VideoGame/ArcanaHeart Kamui Tokinomiya]], [[VideoGame/Disgaea3AbsenceOfJustice Mao]]
** [[Creator/ManamiNumakura Hibiki]] - [[Anime/BlackRockShooter Arata]], [[HanamaruKindergarten Kenji]], [[Anime/{{Zoobles}} Panky]]
** Yayoi - [[VideoGame/ArcanaHeart Lilica Felchenrow]], hyperactive as ever.
** [[Creator/AkikoHasegawa Miki]] - The Japanese voice of [[FireEmblemTellius Mia/Wayu]].
** [[Creator/JuriTakita Kotori]] - [[VideoGame/ArcanaHeart Mei-Fang]] and the Japanese voice of [[FireEmblemTellius Elincia]].
** [[TakumaTerashima Touma]] - [[GenesisOfAquarion Apollo]], [[VideoGame/SuperRobotWarsOriginalGeneration Kouta Azuma]], [[MobileSuitGundamAGE (adult) Desil Galette]]... OhCrap
** Hokuto - [[TokimekiMemorialGirlsSide2 Chris Weatherfield]]
* TheOtherDarrin: From ''iM@S2'' onward, Yukiho's original seiyuu, Creator/YurikaOchiai, was replaced by Azumi Asakura.
* PortmanteauSeriesNickname: [=iM@S=].
* RelationshipVoiceActor: In the [[Manga/PetitIdolmaster Puchimas anime]], LightNovel/ToraDora stars JunjiMajima and Creator/RieKugimiya voice The Producer and Iori, respectively. However, this is the first time Junji has voiced someone in the franchise, while Rie has voiced her character since its inception.
** Rikka Takanashi, Shinka Nibutani, Kumin Tsuyuri, and Sanae Dekomori from [[LightNovel/ChuunibyouDemoKoiGaShitai Chuunibyou]] share voice actresses Creator/MaayaUchida, Chinatsu Akasaki, AzumiAsakura, and SumireUesaka, respectively, with Ranko Kanzaki, Akane Hino, Yukiho Hagiwara, and Anastasia.
* [[TalkingToHimself Talking To Herself]] - Ami and Mami are both voiced by Creator/AsamiShimoda.