Cher's Full Name: The iconic singer and actress Cher was born Cherilyn Sarkisian.

The name was largely shortened to make it easier to brand, echoing the trend in the entertainment industry to use catchy stage names.

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Bruno Mars: Birth name Peter Gene Hernandez, he adopted the nickname "Bruno" after a childhood resemblance to wrestler Bruno Sammartino, while "Mars" was inspired by his playful persona and desire to create a unique image in the music industry.

Lady Gaga: Born Stefani Joanne Angelina Germanotta, Gaga adopted her stage name from the Queen song "Radio Ga Ga." The name transformation reflects her avant-garde persona and artistic vision, distancing her from her original identity.

Emma Stone: The actress was born Emily Jean Stone but opted for Emma to avoid confusion with another actress named Emily.

The choice showcases how branding and uniqueness are essential in a competitive industry.

Jamie Foxx: This multi-talented performer was born Eric Marlon Bishop.

He chose "Jamie" as a gender-neutral name to get more stage time in comedy clubs, illustrating how gender perceptions can influence identity.

Vin Diesel: Born Mark Sinclair, Diesel adopted a stage name that reflects his identity and background—"Diesel" was a nickname from his friends referencing his high energy, while "Vin" is derived from his father's side.

Nathalie Emmanuel: The "Game of Thrones" star was born Nathalie Joanne Emmanuel.

She chose to keep her last name but often goes by her first name alone, which has become recognizable in Hollywood.

Diane Keaton: Born Diane Hall, she chose "Keaton" as a stage name in honor of her mother's maiden name.

This reflects how familial connections can influence identity choices in the public sphere.

Elton John: Sir Elton Hercules John was born Reginald Kenneth Dwight.

The name change was part of his image overhaul as he transitioned from a session musician to a pop superstar, embodying the transformative potential of stage names.

Katy Perry: Born Katheryn Elizabeth Hudson, she adopted "Perry" (her mother's maiden name) to separate herself from actress Kate Hudson, highlighting branding's vital role in an artist's career.

Natalie Portman: The actress was born Natalie Hershlag, but changed her last name (her father's) to her maternal grandparents' name for privacy and to maintain a level of anonymity in her early career.

Snoop Dogg: Birth name Cordozar Calvin Broadus Jr., Snoop's nickname stems from his childhood where he was compared to the character from "Peanuts." This reflects how childhood influences can significantly shape an adult's public persona.

Joaquin Phoenix: Born Joaquin Rafael Bottom, he and his siblings adopted the last name "Phoenix" to symbolize their family's rebirth following a tumultuous childhood, illustrating personal growth through identity change.

Whoopi Goldberg: Her birth name is Caryn Elaine Johnson.

She decided on "Whoopi" after a whoopee cushion, symbolizing her comedic nature, and "Goldberg" as a stage name to appeal to a broader audience.

Michael Keaton: Originally named Michael Douglas, he adopted the stage name "Keaton" to avoid confusion with the famed actor.

This choice underscores the importance of uniqueness in brand identity.

Nicki Minaj: Born Onika Tanya Maraj, Nicki adopted her stage name as an alter ego that resonates more with her vibrant and confrontational public persona in the music industry.

Portia de Rossi: Born Amanda Lee Rogers, she took a name that reflects a more distinctive identity after she transitioned into acting.

This change illustrates the idea of self-reinvention in the face of public scrutiny.

Marilyn Monroe: She was born Norma Jeane Mortenson.

The transformation into Marilyn Monroe represents a significant rebirth in her public persona, highlighting the complex interplay between celebrity identity and personal history.

Lilly Singh: Born Lilly Saini Singh, she chose to use her first name in its entirety along with her surname to create a relatable brand on platforms like YouTube, emphasizing accessibility in digital spaces.

Frank Ocean: His real name is Christopher Edwin Breaux.

The name "Frank Ocean" creates a unique artistic identity that enhances the ethereal quality of his music and public image, exemplifying how name changes can align with an artist's vision.