Girls Aloud backstage at Wembley Stadium

Girls Aloud members Nadine Coyle, Cheryl Cole, Kimberley Walsh, Sarah Harding and Nicola Roberts backstage at Wembley Stadium on September 19, 2009 in London, England. 

Dave Hogan/Getty Images

From Girls Aloud to SWV to Electrik Red, check out Billboard's editorial countdown of underappreciated girl group tracks.

Most casual pop fans can rattle off a few of the biggest girl group hits of all time -- the classic cuts by the Supremes, TLC, Destiny's Child and more -- with little hesitation, and those smash singles deserve to be celebrated. But those songs should not be the be-all and end-all of girl groups songs. There exists a whole other world of deep cuts, forgotten hits and not-quite-smashes worth discovering and revisiting, from some of the biggest girl groups ever and several that engineered one marvelous single before stepping out of the spotlight.

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After checking out our chart list of the 40 biggest girl group songs ever, read our editorial countdown of the 20 most underrated girl group songs of all time. These tracks might not have smashed the charts, but they hold a special place in our hearts.

20. Dream, "He Loves You Not"

Backed by Puff Daddy and having opened for *N SYNC, Dream never achieved the staying power of Destiny's Child or even the Pussycat Dolls, but "He Loves You Not" deserves to pop up at karaoke bars for decades. A classic other-woman takedown, the single gleefully swims in its PG-rated sassiness: "Say what you want, girl, do what you do/He's never gonna make it with you." - Jason Lipshutz

19. Brute Heart, "There Are Spirits"

This trio from Minneapolis undertook a complete scoring of the "Cabinet of Dr. Caligari," the influential silent German film from the 1920s. "There Are Spirits," which launches the album-of-sorts, is a tip-toeing brood of minimalist drums, driven by the plaintive string work of frontwoman Jackie Beckey. - Andrew Flanagan

18. The B Girls, "Fun at the Beach"

Formed in Toronto in 1977, Locasta Ross,  Xenia Splawinski, Renee Chetsky and Cynthia Ross's first single was "Fun at the Beach." After a gig at CBGB, Joe Strummer invited them to open shows on the "London Calling" tour. - Phil Gallo

17. Destiny's Child, "Through With Love"

Quintessential Destiny's Child, this song (buried deep on their 2004 "Destiny Fulfilled" farewell album) encapsulates the feeling of being over a situation with the one you love and vowing to walk away… at least until he calls again. - Kathy Iandoli

16. Xscape, "My Little Secret"

Gloriously dated -- the first 45 seconds include a Jermaine Dupri spoken-word intro and talk of getting "your message on my beeper" -- but undeniably sensual, Xscape's "My Little Secret" was not the long-gone R&B quartet's biggest hit but endures at the group's most unified statement (about how everybody cheats, but still). - Jason Lipshutz

15. Girls Aloud, "Can't Speak French" / "Je Ne Parle Pas Francais"

One of the less blockbuster-y of British girl group Girls Aloud's many U.K. hits, "Can't Speak French" offers a catchy come-on with a bouncy, layered guitar hook, though with an odd dose of melancholy that gives the song a surprising amount of emotional heft for a seduction ballad. The song's message translates beyond the lyrics, which is probably why the song's French-language version -- which wisely leaves the "funky music" lyric in English -- might be even more compelling. - Andrew Unterberger

14. Boy Krazy, "That's What Love Can Do"

Pop songwriting trio Stock Aitken Waterman (Kylie Minogue, Donna Summer) attempted to apply their magic touch to a girl group with Boy Krazy. The band didn't stick, but this song is a forgotten gem. - Andrew Hampp

13. The Cinderellas, "Please Don't Wake Me"

Backup singers Dorothy Jones, Margaret Ross  and Earl-Jean McCrea, who also recorded as the Cookies, switched their identity with Ross singing lead on this Cynthia Weil-Russ Titelman composition. Fun fact: the group would later become the Raelettes, backing Ray Charles. - Phil Gallo

12. Strawberry Switchblade, "Since Yesterday"

Strawberry Switchblade (what a name) were two paisley-and-lace Scottish princesses that, in retrospect, were as representative of the sound and style of the early 80's as anyone. "Since Yesterday," their best-known song, spins a sunny vibe around a morose yarn. - Andrew Flanagan

11. The Like, "Release Me"

After one rock-tinged album, the Like worked with producer Mark Ronson (he was dating drummer Tennessee Thomas) who pointed them in a glossy, Phil Spector direction for their second album. This catchy number was the big standout from their 2010 album "Release Me," and now sounds like a lost gem from the Supremes or the Crystals. - Chris Payne

Next: TLC, The Pipettes & The Most Underrated Girl Group Song Ever