In his youth, Red Hot Chili Peppers frontman Anthony Kiedis's babysitters included Cher and Sonny Bono.

Napalm Death's "You Suffer" is the shortest song ever recorded at 1.316 seconds long. Songwriter Justin Broadrick has described it as "utterly retarded ... ridiculous, but it was hilarious". The band even released it as a 7-inch single in 1989.

Cash's most popular and best-selling albums were the live albums he recorded in prisons: namely, Johnny Cash at Folsom Prison in 1968 and Johnny Cash at San Quentin in 1969. Throughout his career, he performed in prisons, sympathetic to the plight of inmates who ran afoul of society. Although he himself was arrested seven times on a variety of charges, he only spent a few nights in jail.

On March 10, 2003, during a London concert, nine days before the 2003 invasion of Iraq, lead vocalist Natalie Maines told the audience: "We don't want this war, this violence, and we're ashamed that the President of the United States (George W. Bush) is from Texas," which garnered a positive reaction from the British audience but led to public protests and boycotts in the United States.

With her parents frequently fighting during her childhood, Minaj lived through characters she created as a means of escape. Her first identity was Cookie, who became Harajuku Barbie and (later) Nicki Minaj. For Pink Friday, Minaj created another alter ego: Roman Zolanski, "a demon inside her", Minaj's "twin brother" whose character she assumes when she is angry. Roman has been compared to Eminem's alter ego Slim Shady, and on "Roman's Revenge" Minaj and Eminem collaborate as their alter egos.

In 2018, Snoop announced that he was "a born-again Christian" and released his first gospel album, Bible of Love.

Alongside his solo career, Adam Lambert has collaborated with Queen as lead vocalist for Queen + Adam Lambert since 2011, including several worldwide tours from 2014 to 2020.

Slim Shady is the evil and mischievous side of Eminem. He was created when Mathers joined the rap group D12, or the Dirty Dozen. Since there were supposed to be 12 rappers and they only had six, they each came up with an alter ego, and Slim Shady was born. When Eminem raps through the point of view of Slim, his songs are violent and dark, with a comic twist.

Jagger contributed backing vocals and Brian Jones played the oboe on the Beatles' "Baby You're a Rich Man". In return, Lennon and McCartney provided high harmonies on "We Love You".

Syd Barrett was the group leader until he gradually lost his mind due to excessive drug use and had to be kicked out of the band. Once described as joyful, friendly, and extroverted, he became increasingly depressed and socially withdrawn, and experienced hallucinations, disorganized speech, memory lapses, intense mood swings, and periods of catatonia. It got to the point where he would stand on stage and refuse to play his guitar. When Barrett couldn't contribute musically, the remaining members hoped he could stay on as a songwriter, similar to what Brian Wilson did for The Beach Boys, but he was too far gone.