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Cher arrives to the Los Angeles premiere of 'The Promise' at TCL Chinese Theatre on April 12, 2017 in Hollywood, California.

Cher is 75! See how the legendary singer has evolved over the years, from her most iconic fashion moments and famous relationships to those plastic surgery rumors.

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Cher performs with Sonny Bono in Germany in 1960.

Cher performs with Sonny Bono in Germany in 1960.

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Cher and Sonny circa 1965.

Cher and Sonny circa 1965.

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Cher and Bono promote "The Sonny & Cher Comedy Hour" in 1970, one year after they married.

The couple promote "The Sonny & Cher Comedy Hour" in 1970, one year after they married.

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Sonny and Cher circa 1973 with their child, Chaz (born 1969).

Sonny and Cher circa 1973 with their child, Chaz (born 1969).

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Cher circa 1975.

Cher circa 1975, the year she and Sonny divorced. By that point, she had established herself as a solo artist with hits like "Gypsys, Tramps & Thieves," "Half-Breed" and "Dark Lady."

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Cher with her second husband, fellow musician Gregg Allman, in the mid-'70s.

Cher with her second husband, fellow musician Gregg Allman. They were married from 1975 to 1979.

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Cher poses for a fashion session in a Bob Mackie creation in 1978.

Cher poses for a fashion session in a Bob Mackie creation in 1978.

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Cher poses for photos for her 1979 album "Prisoner."

Cher poses for photos for her 1979 album "Prisoner."

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Cher during a 1984 photo shoot in Los Angeles.

Cher during a 1984 photo shoot in Los Angeles.

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Cher backstage at the 1986 Academy Awards after presenting actor Don Ameche with an Oscar.

Cher backstage at the 1986 Academy Awards after presenting actor Don Ameche with an Oscar.

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Cher

Cher performs at Wembley Arena in London in 1992.

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Cher performs in Mountainview, Calif., in 1999 during her "Do You Believe?” tour.

Cher performs in Mountainview, Calif., in 1999 during her "Do You Believe?" tour.

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Cher performs in London in 2004 during her long-running farewell tour.

Cher performs in London in 2004 during her long-running farewell tour.

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Cher starring in the 2010 film "Burlesque."

Cher starring in the 2010 film "Burlesque."

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Cher continuing to stun in a fringe jacket after appearing on "The Late Show" in 2015.

Cher continuing to stun in a fringe jacket after appearing on "The Late Show" in 2015.

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Cher attends the 2020 Billboard Awards.

Cher attends the 2020 Billboard Awards.