Though Cher is best known for her long, jet-black hair ... the star changed things up with a dimensional, beachy blonde wig with a smudge root and blend of wheat, honey, and golden blonde tones.

When you think of Cher, you probably think about her signature long ... controlled wig room in her Malibu mansion. Color-wise, Cher tends to stick to either black or icy platinum blonde, but ...

Even Cher couldn't help but join in on the blonde bombshell fun ... How she did it—be it a wig, color, gloss—is a mystery. She donned her signature long black hair in loose retro waves ...

The four are a long Nordic blonde wig, a 'Meg Ryan' number, a straight dark one and a red fringed one. 'Those are the looks I'll be doing between now and Christmas,' Cher told the Daily Mail.

Cher broke out one of her best musical bits last night at the annual Love Rocks NYC benefit concert, taking the stage dressed as Elvis Presley to perform Marc Cohn's "Walking in Memphis.