Alexander Graham Bell

Bell was once a teacher at the Visible Speech at the Boston School for Deaf Mutes. (credit: Getty Images)

Art Garfunkel

Art Garfunkel taught math at the Litchfield Preparatory School in Connecticut! (credit: Getty Images)

Bun B

Bun B is on the Rice University and his listing is that of "Bernard Freeman -- his real name -- with the title "distinguished lecturer" at the end! (credit: Getty Images)

Gene Simmons

Simmons taught sixth grade in Harlem! (credit: Getty Images)

J.K. Rowling

J.K. Rowling was once an instructor of English in Portugal. (credit: Getty Images)

John Adams

Adams taught school for a few years in Worcester before deciding to become a lawyer. (credit: Getty Images)

Lyndon Johnson

Johnson taught public speaking at Pearsall High School in Pearsall Texas and Sam Houston High in Houston! (credit: Getty Images)

Mr. T

I "pity da fool" who showed up to Mr. T's class late! The former actor used to teach physical ed in Chicago! (credit: Getty Images)

Peaches

Peaches used to teach drama and music at the Associated Hebrew Schools of Toronto, where students knew her as Ms. Merrill Beth Nisker! (credit: Getty Images)

Robert Frost

Frost used to teach at the Pinkerton Academy in Derry, New Hampshire. (credit: Getty Images)

Sheryl Crow

Sheryl Crow used to teach music at Kellison Elementary School. (credit: Getty Images)

Sting

Did you know that Sting used to teach English, music, and soccer at St. Catherine's Convent School?! (credit: Getty Images)

Sylvester Stallone

The famed "Rocky" star used to teach gym and physical ed to earn money while supporting himself while attending the American College in Switzerland. (credit: Getty Images)