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2015: Nina Dobrev

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Nina Dobrev and crew were all about the girl power with their Spice Girl costume.
 

1996: Cindy Crawford

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Cindy Crawford went for a modern day Marilyn Monroe, switching the flowy white gown for a form fitting dress.
 

2002: Angie Harmon

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Angie Harmon channeled her inner rocker chick as No Doubt’s front woman Gwen Stefani.
 

2007: Roberto Cavalli

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Roberto Cavalli took his Halloween inspiration from fellow designer Karl Lagerfeld.

2007: Audrina Patridge

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Audrina Patridge’s Like a Virgin outfit gave us major 80s flashbacks.
 

2010: Sophia Bush and Austin Nichols

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Sophia Bush and Austin Nichols played house as newlyweds Katy Perry and Russell Brand.
 

2011: Kelly Ripa and Nick Lachey

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Kelly Ripa and Nick Lachey dressed up as Kim Kardashian and her 6’9 hubby on the same day they announced their divorce.
 

2011: Lauren Conrad

laurenconrad.com

Lauren Conrad tweeted this photo of herself as …Baby One More Time’s Britney Spears.
 

2011: Nicole Richie

twitter.com/nicholerichie

Nicole Richie was the perfect J. Lo in a pink Juicy Couture tracksuit.
 

2012: Miley Cyrus

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With a bright yellow wig and leopard leotard, Miley Cyrus transformed into Nicki Minaj.
 

2013: Ellen DeGeneres

instagram.com/theellenshow

Ellen DeGeneres also impersonated Nicki Minaj for a Halloween episode of The Ellen Show.
 

2013: Perez Hilton

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Celebrity gossip Perez Hilton showed a lot of skin as Bangerz singer Miley Cyrus.
 

2013: Ashley Madekwe

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British actress Ashley Madekwe and her boyfriend paraded as fashion duo Karl Lagerfeld and Choupette.
 

2013: Miley Cyrus

instagram.com/mileycyrus

Miley Cyrus went as Lil’ Kim on the MTV video awards red carpet circa 1999.

2013: Bethenny Frankel

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Bethenny Frankel knows that diamonds really are a girl’s best friend.
 

2013: Paris Hilton

instagram.com/parishilton

Paris Hilton dressed up as the Material Girl herself, Madonna.
 

2013: Paris Hilton

instagram.com/parishilton

And because 2 costumes are better than 1, Paris Hilton also donned Miley Cyrus’s famous VMA bodysuit.
 

2013: Gregg Sulkin

instagram.com/greggsulkin

Gregg Sulkin traded his sneakers for blue suede shoes with his King of Rock ‘n’ Roll costume.
 

2013: Holly Robinson Peete

instagram.com/hollyrpeete

Holly Robinson Peete put on a white and pink wig for her Nicki Minaj outfit.
 

2014: Beyoncé and Blue Ivy

instagram.com/beyonce

Beyoncé and Blue Ivy teamed up as the Jackson family’s Michael and Janet.
 

2014: Cindy Crawford and Rande Gerber

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Cindy Crawford and hubby Rande Gerber proved that couple costumes can be fun with their version of Cher and Gregg Allman.
 

2014: Kate Moss

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Kate Moss as Cara Delevingne: From one supermodel to another.
 

2014: Kim Kardashian and crew

instagram.com/kimkardashian

Kim Kardashian and gang transformed into fellow fashion powerhouses Anna Wintour, Grace Coddington, André Leon Talley and Karl Lagerfeld.
 

2014: Miley Cyrus

instagram.com/mileycyrus

Miley Cyrus channeled her godmother Dolly Parton for Halloween 2014.

2014: Lance Bass

instagram.com/lancebass

Lance Bass did a #tbt to his boy band self.

2014: Kaley Cuoco

instagram.com/normancook

Kaley Cuoco was so believable as Justin Bieber he should hire her as a body double to avoid the paps.
 

2014: Kelly Ripa

instagram.com/livekelly

Kelly Ripa showed her team spirit in a Taylor Swift inspired cheerleader ensemble.
 

2015: Josh Duhamel and Fergie

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Josh Duhamel was spot on with this Karl Lagerfeld getup, complete with Fergie as the famous Choupette.
 

2015: Chrissy Teigen

instagram.com/fablifeshow

Chrissy Teigen is unrecognizable as television personality Guy Fieri.
 

2015: Keke Palmer

instagram.com/kekepalmer

Keke Palmer replicated R&B singer Aaliyah’s Try Again music video ensemble with a rhinestone bikini.
 

2015: Tyler Blackburn

instagram.com/tylerjblackburn

Tyler Blackburn went old school with this Charlie Chaplin costume.
 

2015: Victoria Justice

instagram.com/victoriajustice

Victoria Justice paid tribute to her idol Amy Winehouse.

2015: Kim Kardashian

instagram.com/kimkardashian

Kim K took the easy route and went as herself at the 2013 Met Ball.

2015: Kelly Ripa and Michael Strahan

instagram.com/livekelly

Co-hosts Kelly Ripa and Michael Strahan took their Halloween inspo from the Super Bowl. Kelly paraded as California Girl Katy Perry with Michael as perhaps the even more famous left shark.