Meghan Markle was called Meg since childhood, her Suits character was also named Rachel.
Rihanna's birth name is Robyn Rihanna Fenty. Her beauty brand's name is inspired by it. Close friends and family call her Robyn.
Emma Stone changed her name from Emily Stone to register for her SAG card but it was already taken. She chose Riley, but it was too different.
Miley Cyrus was originally named Destiny Hope, but was nicknamed Smiley as a baby due to her constant smiling. The nickname eventually became Miley.
Cardi B's birth name is Belcalis Marlenis Almánzar. She got her stage name from the nickname "Bacardi," which was given to her because her sister's name is Hennessy.
Jamie Foxx, born Eric Marlon Bishop, opted for a gender-neutral name like Jamie to increase his chances of being called on first at comedy clubs.
Calvin Harris's real name is Adam Richard Wiles, revealed by Taylor Swift at the iHeartRadio Awards in 2016. He considered changing his stage name due to negative associations.
Brad Pitt chose to go by his nickname "Brad" instead of his full birth name, William Bradley Pitt, when he started his career.
Nicolas Cage dropped his last name (Coppola) to avoid nepotism accusations, as his uncle is Francis Ford Coppola.
Drake's stage name comes from his middle name, which his father gave him. He prefers using Drake in his everyday life, while his birth name Aubrey is more formal.