Christina Aguilera kisses a female 'Voice' contestant on the lips and Pharrell loses his mind

Christina Aguilera Shocks 'The Voice' Coaches and Kisses a Female Contestant

The Voice definitely saved the best for last!

After Curly Sue star Alisan Porterslayed the competition on Monday's premiere, Voice hopeful Kata Hay turned it up a notch on Tuesday with an unbelievable cover of Gretchen Wilson's power anthem "Redneck Woman."

But her powerful pipes weren't the reason three of the four coaches -- Adam Levine, Christina Aguilera and Pharrell -- were left speechless and turned their chairs.

RELATED: 'Curly Sue' Star's Flawless Audition Brings Christina Aguilera to Tears on 'The Voice'

The fun-loving 28-year-old from Tulsa, Oklahoma immediately made her presence known following her killer blind audition, running straight at Adam -- straddling him and planting a kiss on his cheek -- before giving Christina and Pharrell some love too.

Kata also revealed a childhood crush on Xtina that turned the tide in favor of the powerhouse vocalist.

"You were my official first girl crush," Kata, whose girlfriend was backstage, told Christina. "You're so freakin' beautiful in person!

"You're so freakin' beautiful! Should we just make out now because I was your first crush? Let's get it over with so we can get to work," the 35-year-old singer offered, to the absolute shock and delight of Pharrell.

RELATED: Christina Aguilera Wants to Win 'The Voice' Season 10 Badly

Don't worry, Christina fulfilled her promise, sharing an innocent peck on the lips with Kata!

Afterwards, Pharrell lost his mind. "Wake up! Wake up!" the "Happy" singer adorably joked, slapping himself out of his dream.

But Christina wasn't finished. "If you pick me," Christina hinted to Kata, "there's more of that to come."

Woah!

See photos of Christina Aguilera through the years:

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Christina Aguilera through the years
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Christina Aguilera kisses a female 'Voice' contestant on the lips and Pharrell loses his mind
THE VOICE -- 'Live Semis' Episode 817B -- Pictured: Christina Aguilera -- (Photo by: Trae Patton/NBC/NBCU Photo Bank via Getty Images)
Singer Christina Aguilera performs her hit song "Genie In A Bottle" accompanied by dancers at the 1999 Teen Choice Awards taping August 1 in Santa Monica. The award show, celebrating the hottest teen icons in film, television, music, sports and fashion was sponsored by Seventeen magazine and will be broadcast on the FOX television network in the United States on August 12. FSP/JP
Singers Britney Spears (L) and Christina Aguilera appear on stage at the MTV Video Music Awards in New York on September 7, 2000. Spears and Aguilera were both nominated for awards in the show. JC/SV
Singer Christina Aguilera, pictured June 2, 2001 at the 2001 MTV Movie Awards in Los Angeles, was nominated for two Latin Grammy awards, including Best Record of the Year for "Pero Me Acuerdo De Ti" ("But I remember you"), the Latin Recording Academy announced July 17 at a press conference in Miami. The awards will be presented September 11 during a ceremony at the American Airlines Arena in Miami. BK/HB
Singer Christina Aguilera poses as she arrives at the sixth annual "Teen People" 25 Hottest Stars under 25 party in Hollywood May 5, 2003. Aguilera was named to the list which features the top young stars in film, music and television. REUTERS/Fred Prouser FSP
Singer Christina Aguilera arrives at the 46th annual Grammy Awards show in Los Angeles, February 8, 2004. REUTERS/Fred Prouser FG/SV
Singer Christina Aguilera performs 'When You Wish Upon A Star' on stage at Disneyland's 50th anniversary celebration. Singer Christina Aguilera performs the Disney song 'When You Wish Upon A Star' at Disneyland's 50th anniversary celebration ceremony, at the Disneyland theme park in Anaheim, California May 5, 2005. Walt Disney, founder of the Walt Disney Company and visionary behind the creation of Disneyland, opened the park on July 17, 1955. REUTERS/Fred Prouser
Singer Christina Aguilera performs at the 2006 MTV Movie Awards taping at Sony Pictures Studios in Culver City, California June 3, 2006.
Christina Aguilera performs on ABC's Good Morning America in New York's Bryant Park August 18, 2006. REUTERS/Brendan McDermid (UNITED STATES)
Christina Aguilera holds her Grammy after winning Best Female Pop Vocal Performance for "Ain't No Other Man" at the 49th Annual Grammy Awards in Los Angeles February 11, 2007. REUTERS/Mike Blake (UNITED STATES)
Singer Christina Aguilera is interviewed as she arrives at the 'Africa Rising' Festival at the Royal Albert Hall, in London October 14, 2008. REUTERS/Alessia Pierdomenico (BRITAIN)
Singer Christina Aguilera arrives at the 2010 MTV Movie Awards in Los Angeles June 6, 2010. REUTERS/Mario Anzuoni (UNITED STATES - Tags: ENTERTAINMENT)
Cast member Christina Aguilera waves at the premiere of "Burlesque" at the Grauman's Chinese theatre in Hollywood, California November 15, 2010. The movie opens in the U.S. on November 24. REUTERS/Mario Anzuoni(UNITED STATES - Tags: ENTERTAINMENT)
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PICS: Christina Aguilera Channels Old School Xtina in New 'Voice' Promo Photos

"It's cool. This is a dream, so I just get to do whatever I want," Pharrell said from the audience, completely spell-bounded.

Christina wasn't about to let Kata go to either of her fellow coaches.

"I'm not playing around anymore. Let's get down to business -- the first woman to win this thing. Let's put fire, let's put spunk, let's put sassiness in it, bring it down for the tender moments. I'm feeling this," she continued.

So did it work? It sure did! Welcome to Team Christina, Kata!

Christina Aguilera Tears Up After 'Curly Sue' Star's 'The Voice' Audition

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