The title song of this single, widely known as HR, was a huge karaoke hit and led the respective JOYSOUND charts for 43 weeks.

The group's previous single, "Ponytail to Shushu", contained tickets in which buyers would vote for a member that would participate in the title track for "Heavy Rotation".

Before the track was recorded and the PV was filmed, the annual Kenkyuusei selection process was announced with Atsuki Ishiguro failing it because of her scandal.

"Heavy Rotation" was sung by selection senbatsu performer, consist of: Melody Nurramdhani Laksani, Ayana Shahab, Beby Chaesara Anadila, Cindy Gulla, Devi Kinal Putri, Frieska Anastasia Laksani, Ghaida Farisya, Jessica Vania, Jessica Veranda, Nabilah Ratna Ayu Azalia, Rena Nozawa, Rezky Wiranti Dhike, Sendy Ariani, Shania Junianatha, Sonya Pandarmawan, Stella Cornelia.

"Heavy Rotation" was sung by selection senbatsu performer, consist of: Dong FangChi, Li ShiQi, Liu Nian, Mao WeiJia, Shen Ying, Shi KeYan, Wan FangZhou, Wang YuDuo, Wei Xin, Wu AnQi, Xu YiTing, Ye ZhiEn, Zhai YuJia, Zhou NianQi, Zhu Ling, Zhuang XiaoTi.

[20] The release also contains Vietnamese version of "Shonichi", "Aitakatta," and "SGO48", having previously performed all three songs during their debut concert in December 2018.

It was released in three different physical versions, containing a collectible digital card, a random bonus photo, a lyric book, and a handshake ticket.

[21] The accompanying music video was later premiered through their official YouTube channel on August 1, 2019, three weeks prior to the physical release.

Two other Under Girls members, namely Nguyễn Thị Nhi (Dona), and Lê Mẫn Nghi, participated in recording the song.

Members who sing the medley in Thai were Cherprang Areekul, Praewa Suthamphong (Music), and Punsikorn Tiyakorn (Pun).

"Heavy Rotation" "Heavy Rotation" was performed by 16 chosen senbatsu performer that determined by ranking from their Senbatsu General Election placement, which consist of: Kunjiranut Intarasin (Jane) (center), Cherprang Areekul, Jennis Oprasert, Kanteera Wadcharathadsanakul (Noey), Natruja Chutiwansopon (Kaew), Plearnpichaya Komalarajun (Juné), Punsikorn Tiyakorn (Pun), Rachaya Tupkunanon (Minmin), Weeraya Zhang (Wee), Isarapa Thawatpakdee (Tarwaan), Jiradapa Intajak (Pupe), Milin Dokthian (Namneung), Natticha Chantaravareelekha (Fond), Patchanan Jiajirachote (Orn), Pimrapat Phadungwatanachok (Mobile), Praewa Suthamphong (Music).

Wink 3 times) originally by HKT48 and covered in Thai by 16 chosen Next Girls performer that determined by ranking from their Senbatsu General Election placement, which consist of: Heavy Rotation music video by AKB48 (with English subtitles) on YouTube