Kristen Wiig steals show in surprise 2015 Grammy performance with Sia

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Kristen Wiig's Crazy 'Chandelier' Modern Dancing Steals the Show at Grammys

The only performers that could outshine a Beatle were a little girl and a 'Saturday Night Live' alum.

Sia performed her hit "Chandelier" at the Grammys alongside her mini-me, 12-year-old Maddie Ziegler, and surprise guest Kristen Wiig -- and while Wiig is known for her comedy, she killed it.

At this point, we all know that Sia's child counterpart is able to tell a story with nothing more than a wig and a nude unitard, but viewers at the Staples Center and at home were shocked to see the comedienne's skills.

RELATED: Full list of winners from the 57th annual Grammy Awards

Neil Patrick Harris tweeted, "Who knew Kristen Wiig was such an amazing dancer! Wait. I think someone put something in my drink. This ain't right. #whatishappening."

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Kristen Wiig steals show in surprise 2015 Grammy performance with Sia
LOS ANGELES, CA - FEBRUARY 08: Actress Kristen Wiig lip-syncs Sia's 'Chandeleir' onstage during The 57th Annual GRAMMY Awards at the at the STAPLES Center on February 8, 2015 in Los Angeles, California. (Photo by Kevork Djansezian/Getty Images)
LOS ANGELES, CA - FEBRUARY 08: Actress Kristen Wiig lip-syncs Sia's 'Chandeleir' onstage during The 57th Annual GRAMMY Awards at the at the STAPLES Center on February 8, 2015 in Los Angeles, California. (Photo by Kevork Djansezian/Getty Images)
LOS ANGELES, CA - FEBRUARY 08: Recording artist Sia (L) and actress Kristen Wiig perform onstage during The 57th Annual GRAMMY Awards at the STAPLES Center on February 8, 2015 in Los Angeles, California. (Photo by Kevin Winter/WireImage)
LOS ANGELES, CA - FEBRUARY 08: Actress Kristen Wiig lip-syncs Sia's 'Chandeleir' onstage during The 57th Annual GRAMMY Awards at the STAPLES Center on February 8, 2015 in Los Angeles, California. (Photo by Kevin Mazur/WireImage)
LOS ANGELES, CA - FEBRUARY 08: Actress Kristen Wiig lip-syncs Sia's 'Chandeleir' onstage during The 57th Annual GRAMMY Awards at the STAPLES Center on February 8, 2015 in Los Angeles, California. (Photo by Kevin Mazur/WireImage)
LOS ANGELES, CA - FEBRUARY 08: Actress Kristen Wiig lip-syncs Sia's 'Chandeleir' onstage during The 57th Annual GRAMMY Awards at the STAPLES Center on February 8, 2015 in Los Angeles, California. (Photo by Kevin Mazur/WireImage)
LOS ANGELES, CA - FEBRUARY 08: Actress Kristen Wiig lip-syncs Sia's 'Chandeleir' onstage during The 57th Annual GRAMMY Awards at the STAPLES Center on February 8, 2015 in Los Angeles, California. (Photo by Kevin Mazur/WireImage)
LOS ANGELES, CA - FEBRUARY 08: Actress Kristen Wiig lip-syncs Sia's 'Chandeleir' onstage during The 57th Annual GRAMMY Awards at the STAPLES Center on February 8, 2015 in Los Angeles, California. (Photo by Kevin Mazur/WireImage)
LOS ANGELES, CA - FEBRUARY 08: Actress Kristen Wiig lip-syncs Sia's 'Chandeleir' onstage during The 57th Annual GRAMMY Awards at the at the STAPLES Center on February 8, 2015 in Los Angeles, California. (Photo by Kevork Djansezian/Getty Images)
LOS ANGELES, CA - FEBRUARY 08: Actress Kristen Wiig lip-syncs Sia's 'Chandeleir' onstage during The 57th Annual GRAMMY Awards at the STAPLES Center on February 8, 2015 in Los Angeles, California. (Photo by Kevin Mazur/WireImage)
Sia performs on stage at the 57th Annual Grammy Awards in Los Angeles February 8, 2015. AFP PHOTO/ROBYN BECK (Photo credit should read ROBYN BECK/AFP/Getty Images)
LOS ANGELES, CA - FEBRUARY 08: Actress Kristen Wiig lip-syncs Sia's 'Chandeleir' onstage during The 57th Annual GRAMMY Awards at the at the STAPLES Center on February 8, 2015 in Los Angeles, California. (Photo by Kevork Djansezian/Getty Images)
LOS ANGELES, CA - FEBRUARY 08: Actress Kristen Wiig lip-syncs Sia's 'Chandeleir' onstage during The 57th Annual GRAMMY Awards at the at the STAPLES Center on February 8, 2015 in Los Angeles, California. (Photo by Kevork Djansezian/Getty Images)
LOS ANGELES, CA - FEBRUARY 08: Actress Kristen Wiig lip-syncs Sia's 'Chandeleir' onstage during The 57th Annual GRAMMY Awards at the at the STAPLES Center on February 8, 2015 in Los Angeles, California. (Photo by Kevork Djansezian/Getty Images)
LOS ANGELES, CA - FEBRUARY 08: Actress Kristen Wiig lip-syncs Sia's 'Chandeleir' onstage during The 57th Annual GRAMMY Awards at the at the STAPLES Center on February 8, 2015 in Los Angeles, California. (Photo by Kevork Djansezian/Getty Images)
LOS ANGELES, CA - FEBRUARY 08: Actress Kristen Wiig lip-syncs Sia's 'Chandeleir' onstage during The 57th Annual GRAMMY Awards at the at the STAPLES Center on February 8, 2015 in Los Angeles, California. (Photo by Kevork Djansezian/Getty Images)
Sia performs on stage at the 57th Annual Grammy Awards in Los Angeles February 8, 2015. AFP PHOTO/ROBYN BECK (Photo credit should read ROBYN BECK/AFP/Getty Images)
LOS ANGELES, CA - FEBRUARY 08: Actress Kristen Wiig lip-syncs Sia's 'Chandeleir' onstage during The 57th Annual GRAMMY Awards at the STAPLES Center on February 8, 2015 in Los Angeles, California. (Photo by Kevin Mazur/WireImage)
LOS ANGELES, CA - FEBRUARY 08: Actress Kristen Wiig lip-syncs Sia's 'Chandeleir' onstage during The 57th Annual GRAMMY Awards at the STAPLES Center on February 8, 2015 in Los Angeles, California. (Photo by Kevin Mazur/WireImage)
LOS ANGELES, CA - FEBRUARY 08: Actress Kristen Wiig lip-syncs Sia's 'Chandeleir' onstage during The 57th Annual GRAMMY Awards at the at the STAPLES Center on February 8, 2015 in Los Angeles, California. (Photo by Kevork Djansezian/Getty Images)
LOS ANGELES, CA - FEBRUARY 08: Actress Kristen Wiig lip-syncs Sia's 'Chandeleir' onstage during The 57th Annual GRAMMY Awards at the STAPLES Center on February 8, 2015 in Los Angeles, California. (Photo by Kevin Mazur/WireImage)
LOS ANGELES, CA - FEBRUARY 08: Actress Kristen Wiig lip-syncs Sia's 'Chandeleir' onstage during The 57th Annual GRAMMY Awards at the STAPLES Center on February 8, 2015 in Los Angeles, California. (Photo by Kevin Mazur/WireImage)
LOS ANGELES, CA - FEBRUARY 08: Actress Kristen Wiig lip-syncs Sia's 'Chandeleir' onstage during The 57th Annual GRAMMY Awards at the STAPLES Center on February 8, 2015 in Los Angeles, California. (Photo by Kevin Mazur/WireImage)
LOS ANGELES, CA - FEBRUARY 08: Actress Kristen Wiig lip-syncs Sia's 'Chandeleir' onstage during The 57th Annual GRAMMY Awards at the STAPLES Center on February 8, 2015 in Los Angeles, California. (Photo by Kevin Mazur/WireImage)
LOS ANGELES, CA - FEBRUARY 08: Actress Kristen Wiig lip-syncs Sia's 'Chandeleir' onstage during The 57th Annual GRAMMY Awards at the STAPLES Center on February 8, 2015 in Los Angeles, California. (Photo by Kevin Mazur/WireImage)
LOS ANGELES, CA - FEBRUARY 08: Recording artist Sia (L) and actress Kristen Wiig perform onstage during The 57th Annual GRAMMY Awards at the STAPLES Center on February 8, 2015 in Los Angeles, California. (Photo by Kevin Winter/WireImage)
LOS ANGELES, CA - FEBRUARY 08: (L-R) Actress Kristen Wiig, dancer Maddie Ziegler and recording artist Sia perform onstage during The 57th Annual GRAMMY Awards at the STAPLES Center on February 8, 2015 in Los Angeles, California. (Photo by Larry Busacca/Getty Images for NARAS)
LOS ANGELES, CA - FEBRUARY 08: Actress Kristen Wiig lip-syncs Sia's 'Chandeleir' onstage during The 57th Annual GRAMMY Awards at the STAPLES Center on February 8, 2015 in Los Angeles, California. (Photo by Kevin Mazur/WireImage)
LOS ANGELES, CA - FEBRUARY 08: Actress Kristen Wiig lip-syncs Sia's 'Chandeleir' onstage during The 57th Annual GRAMMY Awards at the STAPLES Center on February 8, 2015 in Los Angeles, California. (Photo by Kevin Mazur/WireImage)
LOS ANGELES, CA - FEBRUARY 08: Actress Kristen Wiig lip-syncs Sia's 'Chandeleir' onstage during The 57th Annual GRAMMY Awards at the STAPLES Center on February 8, 2015 in Los Angeles, California. (Photo by Kevin Mazur/WireImage)
LOS ANGELES, CA - FEBRUARY 08: Actress Kristen Wiig lip-syncs Sia's 'Chandeleir' onstage during The 57th Annual GRAMMY Awards at the STAPLES Center on February 8, 2015 in Los Angeles, California. (Photo by Kevin Mazur/WireImage)
LOS ANGELES, CA - FEBRUARY 08: Actress Kristen Wiig lip-syncs Sia's 'Chandeleir' onstage during The 57th Annual GRAMMY Awards at the STAPLES Center on February 8, 2015 in Los Angeles, California. (Photo by Kevin Mazur/WireImage)
LOS ANGELES, CA - FEBRUARY 08: Actress Kristen Wiig lip-syncs Sia's 'Chandeleir' onstage during The 57th Annual GRAMMY Awards at the STAPLES Center on February 8, 2015 in Los Angeles, California. (Photo by Kevin Mazur/WireImage)
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Lucky Magazine posted, "Kristen Wiig JUST WON THE #GRAMMYs."

Also, making an appearance during Sunday night's award show was Sia's "Elastic Heart" dancer Shia LaBeouf, who introduced Sia with the reading of a love letter.

Sia, who doesn't want her face to become recognizable, was more than happy to be upstaged by her collaborators. She remained downstage, standing in a corner.

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