Michael Jackson toes the line between this and What Do You Mean, It's Not for Kids? He started out as a squeaky-clean child performer with the Jackson 5, a group that got their own Saturday morning cartoon, and as an adult cultivated a family-friendly Friend to All Children image. He narrated an E.T. storybook album, made Captain EO for the Disney Theme Parks, contributed songs to the first two Free Willy movies, starred in The Wiz as Scarecrow, and frequently pushed messages of nonviolence, peace, and charity in his work. His 1993 Super Bowl halftime performance ended with him surrounded by hundreds of tykes as he sang "Heal the World". He was well aware that he was a hero to kids. Yet much of what he aimed at them was less than family-friendly by conventional standards.
One of his most famous solo songs, "Billie Jean", is about a stalker who claimed that Jackson was the father of one of her twins. Similar "evil woman" songs appear on other albums.
"Thriller" and its spiritual successors have horror themes that are extensively played out in the "Thriller" video and the short film Ghosts.
In Moonwalker, the longest segment of the film is "Smooth Criminal", in which he plays himself as a superhero saving kids from an extreme version of The Aggressive Drug Dealer. The song itself is about a woman's murder, and in the Gangsterland dance segment featuring the song, he beats up or outright kills several people before whipping out a tommy gun to shoot at the villain's mooks. In the climax, he transforms into a robot (later spaceship) and mows down mook after mook without a care in the world. Note that there was a tie-in book for kids for this film, and it had to Bowdlerise the story quite a bit by leaving out the darker lyrics of "Smooth Criminal" and the mass killings (with the exception of the Big Bad's demise).
His crotch-grabbing dance move. He was doing this as early as the video for "Bad", but the video for "Black and White" made it infamous. This was because the clip was hyped for its kid-friendly, high-tech special effects, a prominent role for Home Alone star Macaulay Culkin, and even cameos from Bart and Homer Simpson. (The Simpsons has always had a lot of kids in its fanbase despite being aimed at adults.) Families really didn't expect the video to end with a long, music-free sequence of him dancing, grabbing his crotch, and smashing up a car and storefronts. In fact, director John Landis tried to talk him out of the crotch-grabbing, pointing out that his fanbase was full of kids, but was overruled. In the subsequent public outcry, press speculated that he ended the video this way because there's No Such Thing as Bad Publicity, while Jackson himself claimed he meant no offense at all.
After he was accused of child molestation in 1993, his work became Darker and Edgier and was no longer pushed to families, but he still presented himself as a Friend to All Children and his fans and estate push him as that to this day. It's come to the point that the fan-assembled video for the posthumous track "Behind the Mask" included a shot of a pint-sized Jackson fan grabbing his crotch.
S Club 7 fell into this category with their last album Seeing Double. Two songs in particular that stand out are:
"Hey Kitty Kitty" which contains the lyrics "Hey, kitty kitty, set me free. Why d'you wanna do what you do to me? So good at being bad, you blow my mind. Hey, kitty kitty, you're so fine"
"Do It Til We Drop." Bradley's raps were pretty unexpected for kids, but this song starts out with the line "Come on and play with me baby, like girls do" which is sung by Rachel and one line before the chorus that's repeated frequently is "I'm so high/I can't come down."
Blue Monster and Bikki was, according to the Bubblegum Music database, a dance music project from Sweden aimed at children and young kids. It's even referred to as a mixture of Aqua and Sesame Street. However, the lone videoclip they released features, in order, an anchorman mentioning the eponymous furry monster "hasn't had sex in 3000 years", the monster drinking lots of alcoholic beverages and sporting a huge pixelated boner after seeing Bikki, a man falling face first into a girl's ample cleavage, and finally the monster whizzing blue pee with his big schlong all over the scientists who were trying to capture him, turning them into other blue monsters. The page mentions that the producer thought that "we had some problems deciding the targeted age-group for the album". No shit, Sherlock!
The French children's song "Alouette", when translated, is about plucking a bird's feathers off. It has been featured on everything from Dora the Explorer to Barney & Friends. One children's show, The Alvin Show, got past the true meaning of the lyrics by singing different English lyrics.
Béla Bartok's set of piano pieces For Children includes several based on Bawdy Songs with unprintable lyrics.
A recall happened involving a Wal-Mart CD called Kids Favorites, in which it featured songs with absolutely explicit lyrics.
Kidz Bop. A number of songs that have been featured within that make you go "What the hell were they thinking, putting that in there?!":
Britney Spears' "Toxic". At best, it's a song about substance abuse. At worst, it's a song that uses substance abuse as a metaphor for sex. Not a single lyric was changed.
Black Eyed Peas' "Let's Get It Started" (the album version being named "Let's Get Retarded"!)
Flo Rida's "Club Can't Handle Me", "Wild Ones", "I Cry", "GDFR" and "My House", which are about sex, alcohol, hardcore partying and (in "I Cry"'s case) death.
Green Day's "Boulevard of Broken Dreams", which is about being disillusioned with life.
Lana Del Rey's "Summertime Sadness". Wait, WHAT? Sure, the Kidz Bop version is based off the more well-known Cedric Gervais remix, but, still, the song itself is a dark dirge about suicide.
Bastille's "Pompeii". Hey kids, here's a song about a historical disaster that killed more than 10,000 people!
Iggy Azalea's "Fancy". The alcoholism in the song makes "Sing" look tame.
Franz Ferdinand's "Take Me Out", despite the lyrics being subtle, is actually based on a pretty morbid event: the shooting of Archduke Franz Ferdinand and his wife, whose death caused a little incident known as World War I...
Sam Smith's "I'm Not the Only One". Hey kids, here's a song about sadness and infidelity!
Ellie Goulding's "Love Me Like You Do". That it was, you know, written for the movie of Fifty Shades of Grey makes its inclusion on a Kidz Bop album odd enough as it is, but even if you look past that, it's mostly about BDSM. At least they didn't touch "Earned It".
Drake's "Hotline Bling" is on 31. Because a song about a booty call is obviously for kids!
David Guetta's "Hey Mama" and Fifth Harmony's "Worth It" are on 30, adding onto Kidz Bop's long list of sexually-charged covers (and The Weeknd really dodged a bullet this time around, with "Can't Feel My Face" becoming the first #1 to not be covered since "The Monster".
Pete Wentz of Fall Out Boy actually called them on this, preventing "Dance, Dance" from being used for Kidz Bop 10 due its sexual undertones.
This is similarly done with K-Tel's Mini Pops Kids. For example, the lyrics in their version of Kesha's "Tik Tok" changes the line from "getting drunk" to "playing tag".
Peter Aslop, a children's singer, made a CD about sexuality for kids which contained songs such as "It's My Penis", "Hopelessly Heterosexual" and "Let's Trade Butts".
Notorious YouTube child singer Mishovy Silentosi lists most of his songs as (FOR KIDS). And while most of his older songs are fine for kids, his recent stuff... isn't. He swears a lot, throws in harshly-worded Take Thats, and is infatuated about older women. Did we mention the kid who sings these is 9 years old?