Hollywood's Best-Kept Secret: The 8 Most Avid Celebrity Wig Wearers

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The biggest stars have been upping their wig game lately, and ET is unlocking Hollywood's best-kept secret: Who's rocking faux locks?

WATCH: Kelly Osbourne Wears a Rachel Dolezal Wig

Kylie Jenner
In a video posted to TheKylieJenner.com, the 18-year-old reality star gives viewers a full tour of her wig collection. "I think I'm a wig girl. I love wigs," she said. "And they're super easy."

Lady Gaga
Celebrity wig maker and CreatedHair.com co-founder Amy Gibson told ET the GRAMMY winner takes advantage of a technology called Lace Front to make her wigs look realistic. "Lady Gaga wears it all the time," Gibson said. "That's when the lace is here on the edge of the wig, and if you wear your hair back, it looks like the hair is coming right out of the scalp."

According to Gibson, Queen Bey is also a frequent user of the Lace Front technology.

Gwen Stefani
The Voice coach switches up her look and hair every night on the NBC competition show. "Everything is fake," she joked with ET. "I haven't seen [my real hair] since 9th grade."

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Julianna Margulies
The Golden Globe winner has won Best Wig several years in a row, but she has a practical reason for wearing them. "The truth is a really good wigs cost a lot of money, but they also save production a lot of money," she told ET.

Viola Davis
The How to Get Away With Murder star is a fan of wigs on and off screen. She wore four different styles on the season premiere of her ABC drama.

Taraji P. Henson
The Empire star joked with ET that her co-star Terrence Howard is jealous of the wigs her flamboyant character gets to wear: "Terrence clubs me in the shins because he wants to wear Cookie's wig."

Sherri Shepherd
Sarah Silverman told ET she misses the days when Shepherd was on The View, partly because of her wigs. "I love people who wear wigs on the regular," Silverman said. "It's just such a great way to do life. Whenever I used to do The View I would beg Sherri Shepherd to let me wear one of her wigs because in the dressing room, it's a wall of wigs."