SNSD and BP
- Debuted 9 years apart, both in August by 3 days of difference and their debut stage was in Inkigayo
- Both groups debuted with a hit song among kpop that wasn't noticed that much by the general public, INTW and Boombayah, then got their first comeback in november
- Then the next year of their career, 2008 and 2017 they only released 1 song at all, Baby Baby and AIIYL, although SNSD released the KY mv in 2008 it was released as the 3rd single of GG
- 2009 and 2018, they launched the biggest single of their careers in SK in an ep, Gee and DX4, then months after both released their 2nd ep Genie and KTL, both songs ended up being the 2nd biggest song of their career
Obviously from here both groups had different amount of songs and comebacks, but that doesn't mean they didn't had parallels
- After the release of their biggest album to date that came along with international success and under Interscope, The Boys and The album, both groups went into a quiet year, 2012 and 2021, in which the group released japanese comebacks and had members doing individual proyects, the sub unit TTS along Yuri, Sooyoung and Yoona starring in dramas and ChaeLisa solos along Jisoo drama
- OH-RDR-Hoot were released all in 2010 with different concepts and all 3 being very succesful, HYLT-IC-LSG were released all in 2020 with different concepts and success. Along that the time release between the 1st one and the 2nd one was of 2 months, Jan-March and June-August, meanwhile the first one was an usual concept for the group, the second one is the most different from their usual selfs, then the 3rd one is inspired by an older sound, Hoot by 70s and LSG by 10s.
- Their first soloist debut was in november by the most known member to the gp, Taeyeon and Jennie, with songs that talk about themselves as the main theme, I and Solo. Then the 2nd soloist was the foreign korean member, Tifanny and Rosé, both debuted with songs that underperformed in SK, OTG and IJWD. The third soloist? the maknae with a song that didn't do well in sk but did good in physicals.