Black Eyed Peas' "Let's Get It Started" (the album version was originally titled "Let's Get Retarded," but, because of complaints that it offended those who actually had mental retardation, "Let's Get It Started" was created as a more media-friendly version.)
Bowling for Soup's "1985" leaves in the Prozac but changes "Shake that ass" to "Shake it fast." (Ironically, this version is less censored than the version Bowling For Soup created specifically for Radio Disney.)
Flo Rida's "Club Can't Handle Me", "Wild Ones", and "I Cry"
Cee Lo Green's "Forget You" (much like "Let's Get Retarded," Cee-Lo's "Fuck You" had its title changed to be more media-friendly.)
Ke$ha's "Tik Tok" changes the bottle of Jack line to "And then I go pack". Also, "Tiiiiiippssssy" gets changed to "siiiiilllly".
P!nk's "Who Knew", "So What" and "Perfect" (which has a positive message, but the explicit version and the music video...). Heck, most P!nk songs are just not appropriate for kids. The worst offenders: "Funhouse", "Fingers", "Stupid Girl" (though it does have a very good Aesop that today's girls need to use their brains instead of their bodies to get ahead in life and that fame whores like Paris Hilton aren't good role models for young girls to emulate) and "U and UR Hand".
Kevin Rudolf's "Let It Rock" changes "Stuck his middle finger to the world" to "Raised his hand & waved it to the world".
Franz Ferdinand's "Take Me Out", despite the lyrics being okay, is actually based on a pretty morbid event: specifically, the shooting of Archduke Franz Ferdinand and his wife. That is to say, the song is about the shooting of the guy whose death caused a little incident known as World War One.
Pete Wentz of Fall Out Boy actually called them on this, preventing "Dance, Dance" from being used for Kidz Bop 10 due to its sexual undertones.
Hinder's "Lips of an Angel" and Buckcherry's "Sorry" have really strong lyrics. Kardinal Offishall should be thanking God that "Dangerous" wasn't on Kidz Bop 15.
Bruno Mars should be counting his blessings that Kidz Bop 19 and 20 passed over "Grenade". (His first hit, "Just The Way You Are," was kid-friendly enough for 19 and was a near-lock for the album the whole time, which greatly seemed to affect Grenade's chances.) "The Lazy Song" did make it in, but instead of using the media-friendly version that skips over the entire line about him having sex with some girl he just met, they change it to him sending her text messages and her writing back. "Locked Out of Heaven" made it into 23, though "Sex" was changed to "Love". "When I Was Your Man," seemed all but certain to make it onto 24, but surprisingly, it got snubbed.
Meet a really nice girl send her some really nice texts And she's gonna write back "you're so great" (omg you're so great) Yea-aah
The people at Kidz Bop weren't smart enough to know what LMFAOstands for before they covered "Party Rock Anthem" on Kidz Bop 21. Or They Just Didn't Care (they didn't spell out their name). In fact, it's the very first song on the album! (Good thing "Sexy and I Know It" wasn't on "22".)
Nicki Minaj's "Fly" was on "21", and "Starships" was on "22". The song starts off immediately with "Have a thing, clink. Have a good night." "Higher than a motherfucker" gets changed to "We're Kidz Bop and we're taking over." (They could have used the Glee version, "Higher than any other," but they knew the word "higher" was too inappropriate for it.)
Age-Inappropriate Dress: Maybe not to the extremes of some main-stream little-girl groups like Play, but to some extent the outfits the preteen girls wear in the dance-along videos border on too revealing.
Bowdlerize: Kidz Bop does this to songs that originally have anything relating to substance abuse, alcohol, violence or set in their lyrics in order to make them more kid friendly. This makes their song choices interesting, to say the least. Even lyrics of more innocent forms of love are edited. Many of the songs listed above also mention what was changed.
Adele's "Set Fire To The Rain" changes "Kissed my lips" to "Held my hand."
There was a joke about how a Kidz Bop version of Nelly's Hot In Here would go.
The only change made to Psy's "Gangnam Style" (aside from the removal of the first line in each verse) can be heard in the commercial itself. "HEEEEEEEEEY, HEY LADY!" At least they have an actual Korean kid singing the lyrics.
Kidz Bop 12: "Home" (remember, "It's Not Over" also made it, so the presence of twoDaughtry songs on the same album wasn't something that people could see coming. Since "It's Not Over" was a hit first, its chances were better than "Home's.")
Kidz Bop 13: "Party Like A Rock Star"
Kidz Bop 14: "Superstar"
Kidz Bop 15: "Let it Rock" and "Tell Me Something I Don't Know"
Kidz Bop 16: "How Do You Sleep?", "Live Your Life" and "Hoedown Throwdown"
Kidz Bop 17: "Paparazzi"
Kidz Bop 18: "Single Ladies" (the album came out one and a half years after "Single Ladies" topped the charts; they were probably cashing in the the popularity of the second Alvin & The Chipmunks movie, though.)
Kidz Bop 19: "Club Can't Handle Me," "Magic," and "Please Don't Go" (remember, "Airplanes" and "Cooler Than Me" also made it, so the presence of two B.o.B. and Mike Posner songs was unexpected, and since "Airplanes" and "Cooler Than Me" were much bigger hits than their follow ups, the odds of making it were in their favor). A surprising omission was that of Katy Perry's "Teenage Dream." "Firework" made it, all right, but since Kidz Bop have as of lately allowed no more than one artist each to be covered twice, it was quite shocking to see them chose minor B.o.B. and Mike Posner hits over two number-one Perry songs. There's also Neon Trees' "Animal," a Mind Screw of a song that's either about drugs/overdose, cannibalism, or not getting over someone. No interpretation is appropriate for children. It may have gotten in because it's ridiculously catchy.
Kidz Bop 20: "Forget You" was the biggest surprise, but "The Story of Us" and "Tonight Tonight" are also notable. The former is a Taylor Swift hit that failed to hit the Hot 100's top 40, while the latter song, by then-unknown band Hot Chelle Rae, would become a huge hit in the summer but never took off until after the track listing was released. (Of, course, had Kidz Bop passed it over for "20," it almost certainly would have made it onto "21.")
Kidz Bop 21: "Party Rock Anthem" and "Fly." "It Girl" was quite a shock too, as neither it nor "Fly" were that big of a hit. Chances are, if "Tonight, Tonight" didn't make it onto Kidz Bop 20, it would have taken the spot of either "It Girl" or "Fly" for "21."
Kidz Bop 22: "Starships" and "Tonight is the Night." "Lights," which was an iTunes bonus track, is a unique case, as Kidz Bop jumped on it before it really became a big hit, and there was no time to pull it off the track listing at the last minute and save it for "23."
Kidz Bop 23: "Locked Out of Heaven" and "Gangnam Style." Nobody thought that Kidz Bop would bother to cover a song sung almost entirely in Korean, but were they wrong. Its chief rival on the Hot 100, Maroon 5's "One More Night," seemed to have much better chances to make it onto "23," but it apparently got snubbed quite hard.
Kidz Bop 24: "Thrift Shop," "Suit & Tie," and "Don't Stop The Party," (and, to a lesser extent, "I Love It," "Feel This Moment," and "Can't Hold Us.") Some of the more surprising omissions include "When I Was Your Man" and "Daylight." "Don't You Worry Child" and "Stay" were also big enough hits to make the main disc, but got relegated to bonus tracks.