“Next thing I know, there a baby in my ter-litt!”

Song lyrics, Highway 61 Revisited (1965), It Takes A Lot To Laugh, It Takes A Train To Cry

"I Think That I Would Die"
Song lyrics, Live Through This (1994)

Reported in George Gimarc, Punk Diary: The Ultimate Trainspotter's Guide to Underground Rock, 1970-1982 (2005), p 183.

"Light My Fire" (1967). Because Jim Morrison sang this as a breakthrough hit for The Doors and was the group's primary songwriter, this is often mistakenly thought to have been written by him. It was actually written by guitarist Robby Krieger, as were some other songs including "Love Her Madly," "You're Lost Little Girl" and "Touch Me" (as well as some other songs on the Soft Parade album). The second verse of the song, however, was written by Morrison.
Misattributed

"Light My Fire" (1967); because Jim Morrison sang this as The Doors first hit, and he was the group's primary songwriter, this is often mistakenly thought by many to have been written by Morrison.

Jimmy Bean
Works, Pollyanna (1913)

"Be-Bop-A-Lula" (1956); though Vincent composed the tune and sang the song, by his accounts, the lyrics to this were written by Donald Graves (the credit for which he sold to Bill "Sheriff Tex" Davis). · Town Hall Party (1958) at YouTube https://www.youtube.com/watch?v=vDU9FP5_B2M
Misattributed

2010s, Why Penn Jillette is Terrified of a President Trump (2016)
Context: The problem is, I know Trump, so my optimism has been squashed like a baby bird … Everything bad I had to say about him, I said to his face. … I think he’s very good, very compelling on that show [Celebrity Apprentice] … I really like him because of his absence of filters. I really like the glimpse we get into the human heart we get when someone loses their filters … If he weren’t running for president, you’d be seeing essays from me about how much I learned from Donald Trump and how much I loved being on the show … I’m feeling so, so, so guilty, because I feel like, along with millions of other people, I played right into this. The cynicism of the Clintons, the careful, tightrope walk of all politicians, forced me, as an atheist, to get down on my knees and pray that someone would come along with some kind of authenticity … Well, someone called my bluff, goddamn it. … I’m a pure and utter peacenik. I want a president who sings the praises of people, sings the praises of peace and sings the praises of working together for a great country … Abraham Lincoln wouldn’t have laughed about waterboarding … If you told me right now I could have another eight years of Obama, I would not hesitate to grab at it. … He is unquestionably good and unquestionably smarter than I am, which is putting the bar pretty low. I want a president that is kinder, smarter and more measured than me.