- Ear Worm: There is a reason they had 20 Top 10 singles.
- Face of the Band: Cheryl. 90% of the band's tabloid and media attention have been around her.
- Fan Nickname: Cheryl has "Chezza", Kimberley has "Kimba" and Sarah is "Hardcore Harding".
- Growing the Beard: When the group was first formed, they were still considered a novelty, due to being formed on Popstars: The Rivals and there was no real successful act to spring from reality television. It wasn't until they released "Love Machine" and then Chemistry that critics started to take notice of their output.
- Hilarious in Hindsight: This 2006 sketch featuring Kimberley, Sarah, and Cheryl spoofing The X Factor. Two years later, Cheryl replaced Sharon Osbourne as a judge on the show.
- On one of the band's behind the scenes specials in 2005, Cheryl makes a crack about she and the rest of the girls don't really want to be singing "Love Machine" by the time they're 30. In 2013, all five of them are already at that age and they'll be touring on their greatest hits, which include "Love Machine."
- This 2005 review of Chemistry. The next several years did in fact see them release their first greatest hits collection, Cheryl's marriage and divorce, The X Factor and subsequent solo career, and the other girls following suit with other reality show appearances and solo albums.
- Magnum Opus: Chemistry, Tangled Up, and Out of Control regularly alternate for top spots on fans and critics' lists for best album.
- Narm: How Sarah and Cheryl view the "Wake Me Up" video and several others upon rewatching them several years later for a DVD commentary.
- One True Threesome: Part of the fanbase regards Nicola, Cheryl, and Kimberley as this, dubbing them "Chimola" as the three of them border on True Companions and were most often seen hanging out together during the group's hiatus and showing up for support on each other's solo endeavors.
- Signature Song: "Love Machine", "Biology", "Call The Shots", or "The Promise", depending on who you ask.
- Suspiciously Similar Song: "Life Got Cold" bears quite a resemblance to Oasis' "Wonderwall".
- What Could Have Been: "Long Hot Summer" was intended for the Herbie: Fully Loaded soundtrack, but the plans fell through.
- "Hoxton Heroes" was intended to be on Tangled Up, but Executive Meddling relegated it to the B-Side for "Can't Speak French".
- Executive Meddling at the record label did not want "The Promise" to be the first single off of Out of Control. They wanted "Rolling Back The Rivers In Time" instead, but the girls fought their label and won out.
- The Woobie: Nicola Roberts, who was abused and branded by the media for being pale and "ugly" at age 17 when she joined the group.