Development Hell - The full music video for Beep Beep was supposedly going to be released in late May 2013. They released it in early December 2013 instead.
Easter Egg - In "I Got A Boy" when Jessica says "Don't stop, let's bring it back to 140", she means it. The song does go back to 140, not only in bpmnote beats per minute, but it also goes back to the 1:40 segment in the song itself.
S♥nesnote From "소원" (sowon), which means "wish", but also references how SNSD and their fans are one.
Each of the members' fanbases have their own nicknames.
Taeyeon has Taegangers,
Jessica has GorJess Spazzers or MaoMaos among Chinese fans,
Sunny has Sunshiners,
Tiffany has Fanytastics,
Hyoyeon has Hyohunnies,
Yuri has Yurisistables,
Sooyoung has Sooyoungsters,
Yoona has Yoonaddicts, and
Seohyun has Seomates.
Fan Nickname - Too many to count in the ever-so growing list. They acknowledged some of these nicknames in the past, during events such as the ITNW concert and in the Korean TV show Come To Play.
For Taeyeon, we have: Kid Leader, Taeng, Ahjumma ("middle-aged lady", mainly because of her laugh), Umma (mother), ByunTae ("pervert"), Taengoo (goo means "9" in Korean, this is the reason why her jersey number on Oh! was 9), Taeng DJ, MungTaeng, Kkokkoma, Taeyeonnie, OST Queen, Leonardo Da Taengsinote because of the drawings on her instagram account (dubbed "Taengstagram").
Sunny: Aegyo Queen, Energy Pill, Danshin (shorty), SoonKyu, Sunny Bunny, DJ Soon, Ssun, Strong Sunny
Tiffany: Fany Fany Tiffany, Manager Hwang, Jackson Hwang, DdilFany, Brighter Than Gems note boseok boda bitnaneun, Brighter Than Mushrooms note boseot boda bitnaneun. Due to Tiffany's mispronunciation., Miyoung, Rapper Hwang, DJ Hwang, Fang DJ note The Korean "hw" sound is the equivalent to the English "f" sound, Secretary Hwang, Ppanyang
Hyoyeon: Dancing Queen, Kim-choding, Specialist HY, Dancing Machine, Hyorengi (Tiger), Kim Yeolsal note 10 years old
Yuri: Black Pearl, Yul, BK Yuri, Kkab Yul, Prankster Yul
Sooyoung: Shikshin, Happy Princess, NaSoo (interrupter), DJ Syoung, Sooyoungie
Yoona: Deer Yoona, Him Yoona note Same as "Power Yoona". Him is the Korean term for power, Flounder, Nam Choding, Alligator Yoona, Yoong, Saseumi, Im-choding, Saebyuk, Goddess
Seohyun: Maknae, Seororo, Seobaby, Seobot, Gguk Gguk Ee note a Korean term which means "doesn't get angry", Hyun, Joohyun, Angel Maknae, Innocent Seohyun, Milk Seo Joo, The youngest Princess, SEOnoop Dogg, Sweet Potato Princess.
He Also Did - Taeyeon and Seohyun served as voice actresses (Taeyeon as Margo and Seohyun as Edith) in the Korean version of Despicable Me.
Milestone Celebration - Their sixth Korean studio album, Holiday Night, will be released a few days after the 10th anniversary of the group's debut single "Into the New World" as a commemoration.
Tiffany. She was a big fan of Kim Hyun Joong (the leader) of SS501 back when she was still a trainee (check out her pre-debut Q&A here). On an episode of the now-defuct Korean TV show Star Golden Bell, SNSD got to guest-star with the members of SS 501 themselves. And when the host conducted a survey in which the members of SS 501 picked the most popular / their favorite SNSD member, they picked Tiffany. (That includes Mr. Kim Hyun Joong). After that, Kim Hyun Joong stated that he looks up Tiffany on the internet. Fangirling from her side most likely ensued.
Sunny also had a fangirl moment when her idol Lee Bumsoo (a famous Korean actor) became SNSD's acting teacher on Horror Movie Factory.
In MTV Lifestyle, we have Seohyun's own fangirl moment when she visited the Keroro dubbing studio. She even got to dub Keroro's voice!
Scully Box - The girls range in height from 155 cm (Sunny) to 170 cm (Sooyoung). While there's not much they can do about the massive differences whilst performing, photoshoots are another matter, and often result in the employment of these.
During their time as trainees in SM, their group's name was "YeoDan Team".note From 여자 단체(Yeoja Danche) which means "Female Group" - "Yeoja Danche team" literally translates to "Female Group Team" The name "Super Girls" was preferred by the press and the netizens.
Jessica was originally considered for a SNSD subunit, along with Tiffany and Seohyun, they even recorded a song together, “Oppa Nappa”. This is known within Sones, the three were often even promoted together but in the end she was replaced with Taeyeon and Tae Ti Seo was born. What happened during this time is a mystery.
"Catch Me If You Can" had to be re-recorded and re-shot when Jessica left the group. It wasn't clear that it was originally for 9 members song until Jessica was caught singing a line in her reality show prior to its release and screenshots of the MV were leaked, along with a draft of the MV itself.