Carrie Underwood's complete style transformation: From sparkly gowns to see-through ensembles

Carrie Underwood is the ultimate America's sweetheart.

From her million-dollar smile to her sweet personality, what's not to love?

The country singer skyrocketed to fame on the fourth season of "American Idol," and there's been no stopping her ever since. While Underwood definitely has vocals that could kill -- have you ever listened to "Before He Cheats"?! -- she's also doing quite well for herself in the fashion department.

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Carrie Underwood's complete style transformation
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Carrie Underwood's complete style transformation
LOS ANGELES, CA - NOVEMBER 21: Carrie Underwood attends 34th Annual American Music Awards 2006 Arrivals at Shrine Auditorium on November 21, 2006 in Los Angeles, CA. (Photo by Andreas Branch/Patrick McMullan via Getty Images)
Carrie Underwood during American Idol Top 12 Finalists Party - March 9, 2005 at The Pacific Design Center in West Hollywood, California, United States. (Photo by Mathew Imaging/FilmMagic)
Carrie Underwood (Photo by Steve Granitz/WireImage)
Carrie Underwood during 57th Annual Primetime Emmy Awards - Arrivals at The Shrine in Los Angeles, California, United States. (Photo by Jon Kopaloff/FilmMagic)
NEW YORK - NOVEMBER 12: Country singer Carrie Underwood arrives to the 'Broadway Meets Country' Benefit Concert at 'Frederic P. Rose Hall, Home of Jazz at Lincoln Center' on November 12, 2005 in in New York City. (Photo by Brad Barket/Getty Images)
Carrie Underwood during 43rd Annual ASCAP Country Music Awards - ASCAP at The Ryman at Ryman Auditorium in Nashville, Tennesse, United States. (Photo by Rick Diamond/WireImage)
NEW YORK - NOVEMBER 15: Singer Carrie Underwood attends the 39th Annual Country Music Association Awards at Madison Square Garden November 15, 2005 in New York City. (Photo by Evan Agostini/Getty Images)
Carrie Underwood during Country Takes New York City - Presents Kodak One Gallery in SoHo at Koday Gallery in New York, New York. (Photo by Desiree Navarro/FilmMagic for Country Music Association)
Carrie Underwood (Photo by Djamilla Rosa Cochran/WireImage)
Carrie Underwood at the Stereo in New York City, NY (Photo by Stephen Lovekin/WireImage)
Carrie Underwood, winner Female Video of the Year and Breakthrough Video of the Year for 'Jesus, Take the Wheel' (Photo by Frank Mullen/WireImage)
LAS VEGAS - MAY 23: Singer Carrie Underwood poses in the press room with her two awards at the 41st Annual Academy Of Country Music Awards held at the MGM Grand Garden Arena on May 23, 2006 in Las Vegas, Nevada. (Photo by Mark Mainz/Getty Images)
'American Idol' Season 4 winner Carrie Underwood during 'American Idol' Season 5 - Finale - Arrivals at Kodak Theater in Hollywood, California, United States. (Photo by Jon Kopaloff/FilmMagic)
Carrie Underwood during The 40th Annual CMA Awards - Arrivals at Gaylord Entertainment Center in Nashville, Tennessee, United States. (Photo by Todd Williamson/FilmMagic)
LOS ANGELES, CA - NOVEMBER 21: Singer Carrie Underwood arrives at the 2006 American Music Awards held at the Shrine Auditorium on November 21, 2006 in Los Angeles, California. (Photo by Stephen Shugerman/Getty Images)
Carrie Underwood, in BCBG, arrives at the 2006 Kennedy Center Honors Sunday night in Washington DC. The 29th Annual Kennedy Centers Honors will be broadcast December 26th on CBS. (Photo by Scott Suchman/WireImage)
Singer Carrie Underwood arrives to the 'Clive Davis Pre-Grammy Party' at the Beverly Hilton Hotel on February 9, 2008 in Beverly Hills, California. (Photo by Jon Kopaloff/FilmMagic)
LOS ANGELES, CA - FEBRUARY 10: Singer Carrie Underwood arrives to the 50th Annual GRAMMY Awards at the Staples Center on February 10, 2008 in Los Angeles, California. (Photo by Steve Granitz/WireImage)
BEVERLY HILLS, CA - FEBRUARY 10: Carrie Underwood attends Sony BMG Grammy After Party - Red Carpet at Beverly Hills Hotel on February 10, 2008 in Beverly HIlls, CA. (Photo by ANDREAS BRANCH/Patrick McMullan via Getty Images)
Singer Carrie Underwood attends the 2008 CMT Music Awards at the Curb Events Center at Belmont University on April 14, 2008 in Nashville, Tennessee. (Photo by Jon Kopaloff/FilmMagic)
LAS VEGAS - MAY 18: Singer Carrie Underwood poses in the press room during the 43rd annual Academy Of Country Music Awards held at the MGM Grand Garden Arena on May 18, 2008 in Las Vegas, Nevada. (Photo by Jon Kopaloff/FilmMagic)
LAS VEGAS - MAY 18: Singer Carrie Underwood arrives at the 43rd Academy of Country Music Awards at The MGM Grand Garden Arena on May 18, 2008 in Las Vegas, Nevada. (Photo by Denise Truscello/WireImage)
LOS ANGELES, CA - JANUARY 07: ***EXCLUSIVE*** Actress Carrie Underwood poses backstage during the 35th Annual People's Choice Awards held at the Shrine Auditorium on January 7, 2009 in Los Angeles, California. (Photo by Frazer Harrison/Getty Images for PCA)
LOS ANGELES, CA - JANUARY 07: Singer Carrie Underwood poses at the 35th Annual People's Choice Awards Press Room at the Shrine Auditorium on January 7, 2009 in Los Angeles, California. (Photo by Jon Kopaloff/FilmMagic)
Carrie Underwood . during 51st Annual GRAMMY Awards - Salute To Icons: Clive Davis - Arrivals at Beverly Hilton Hotel in Los Angeles, CA, United States. (Photo by Steve Granitz/WireImage)
LOS ANGELES, CA - FEBRUARY 08: Singer Carrie Underwood arrives at the 51st Annual Grammy Awards held at the Staples Center on February 8, 2009 in Los Angeles, California. (Photo by Frazer Harrison/Getty Images)
LOS ANGELES, CA - FEBRUARY 08: Singer Carrie Underwood, winner of the Best Female Country Vocal Performance for 'Last Name' poses in the press room during the 51st Annual Grammy Awards held at the Staples Center on February 8, 2009 in Los Angeles, California. (Photo by Jason Merritt/Getty Images)
LAS VEGAS - APRIL 05: Singer Carrie Underwood arrives at the 44th annual Academy Of Country Music Awards held at the MGM Grand on April 5, 2009 in Las Vegas, Nevada. (Photo by Jason Merritt/Getty Images)
Singer Carrie Underwood visits 'Late Show with David Letterman' at the Ed Sullivan Theater on November 2, 2009 in New York City. (Photo by Jeffrey Ufberg/WireImage)
HOLLYWOOD, CA - NOVEMBER 21: Carrie Underwood arrives at CNN Heroes: An All-Star Tribute at the Kodak Theater on November 21, 2009 in Hollywood, California. (Photo by Gregg DeGuire/FilmMagic)
Singer Carrie Underwood arrives at the 2009 American Music Awards at Nokia Theatre L.A. Live on November 22, 2009 in Los Angeles, California. (Photo by Steve Granitz/WireImage)
Singer Carrie Underwood arrives at the People's Choice Awards 2010 Arrivals at Nokia Theatre L.A. Live on January 6, 2010 in Los Angeles, California. (Photo by Jon Kopaloff/FilmMagic)
BEVERLY HILLS, CA - JANUARY 30: Singer Carrie Underwood arrives at The Recording Academy's 2010 GRAMMY Salute To Icons Honoring Clive Davis at The Beverly Hilton Hotel on January 30, 2010 in Beverly Hills, California. (Photo by Jon Kopaloff/FilmMagic)
LOS ANGELES, CA - JANUARY 31: Singer Carrie Underwood arrives at the 52nd Annual GRAMMY Awards held at Staples Center on January 31, 2010 in Los Angeles, California. (Photo by Lester Cohen/WireImage)
LOS ANGELES, CA - JANUARY 31: Singer Carrie Underwood poses with Country Collaboration With Vocals award for 'I Told You So' in the press room during the 52nd Annual GRAMMY Awards held at Staples Center on January 31, 2010 in Los Angeles, California. (Photo by Kevork Djansezian/Getty Images)
LAS VEGAS - APRIL 18: Musician Carrie Underwood arrives for the 45th Annual Academy of Country Music Awards at the MGM Grand Garden Arena on April 18, 2010 in Las Vegas, Nevada. (Photo by Denise Truscello/WireImage)
LAS VEGAS - APRIL 18: Singer Carrie Underwood, winner of Entertainer Of The Year Award and the Triple Crown Award poses in the press room during the 45th Annual Academy of Country Music Awards at the MGM Grand Garden Arena on April 18, 2010 in Las Vegas, Nevada. (Photo by Kevork Djansezian/Getty Images)
NASHVILLE, TN - JUNE 09: Carrie Underwood attends the 2010 CMT Music Awards at the Bridgestone Arena on June 9, 2010 in Nashville, Tennessee. (Photo by Kevin Mazur/WireImage)
THE 44TH ANNUAL CMA AWARDS - RED CARPET ARRIVALS - 'The 44th Annual CMA Awards' will be broadcast live from the Bridgestone Arena in Nashville, WEDNESDAY, NOVEMBER 10 (8:00-11:00 p.m., ET) on the ABC Television Network. (Photo by Andrew Walker/ABC via Getty Images) CARRIE UNDERWOOD
LAS VEGAS, NV - DECEMBER 06: Carrie Underwood arrives at the American Country Awards at the MGM Grand Hotel and Casino on December 5, 2010 in Las Vegas, Nevada. (Photo by Denise Truscello/WireImage)
FRANKLIN, TN - NOVEMBER 30: Honoree Carrie Underwood at the CMT Artists of the Year at The Factory on November 30, 2010 in Franklin, Tennessee. (Photo by Rick Diamond/Getty Images for CMT)
WASHINGTON, DC - MARCH 21: Singer Carrie Underwood attends the Points of Light Institute Tribute to Former President George H.W. Bush at The John F. Kennedy Center for Performing Arts on March 21, 2011 in Washington, DC. (Photo by Paul Morigi/WireImage)
68th ANNUAL GOLDEN GLOBE AWARDS -- Pictured: Carrie Underwood arrives at the 68th Annual Golden Globe Awards held at the Beverly Hilton Hotel on January 16, 2011 (Photo by Evan Agostini/NBC/NBCU Photo Bank via Getty Images)
LAS VEGAS, NV - APRIL 03: Singer Carrie Underwood arrives at the 46th Annual Academy Of Country Music Awards RAM Red Carpet held at the MGM Grand Garden Arena on April 3, 2011 in Las Vegas, Nevada. (Photo by Rick Diamond/ACMA2011/Getty Images for ACM)
Actress/singer Carrie Underwood arrives at the premiere of 'Soul Surfer' held at Arclight Cinerama Dome in Hollywood. (Photo by Frank Trapper/Corbis via Getty Images)
LAS VEGAS, NV - SEPTEMBER 23: Singer Carrie Underwood arrives at the iHeartRadio Music Festival held at the MGM Grand Garden Arena on September 23, 2011 in Las Vegas, Nevada. (Photo by Jeff Kravitz/FilmMagic)
LAS VEGAS, NV - DECEMBER 05: Singer Carrie Underwood arrives at the American Country Awards 2011 at the MGM Grand Garden Arena on December 5, 2011 in Las Vegas, Nevada. (Photo by Frazer Harrison/Getty Images)
LOS ANGELES, CA - FEBRUARY 12: Singer Carrie Underwood arrives at the 54th Annual GRAMMY Awards held at Staples Center on February 12, 2012 in Los Angeles, California. (Photo by Jason Merritt/Getty Images)
NEW YORK, NY - APRIL 27: Singer Carrie Underwood visits SiriusXM Studio on April 27, 2012 in New York City. (Photo by Slaven Vlasic/Getty Images for SiriusXM)
LAS VEGAS, NV - MAY 20: Singer Carrie Underwood arrives at the 2012 Billboard Music Awards at the MGM Grand Garden Arena on May 20, 2012 in Las Vegas, Nevada. (Photo by Kevin Mazur/WireImage)
LOS ANGELES, CA - MAY 23: Carrie Underwood arrives at 'American Idol' Season 11 grand finale show held at Nokia Theatre L.A. Live on May 23, 2012 in Los Angeles, California. (Photo by Michael Tran/FilmMagic)
LONDON, UNITED KINGDOM - JUNE 20: Carrie Underwood is pictured arriving at 10 downing Street on June 20, 2012 in London, England. (Photo by Neil Mockford/FilmMagic)
NASHVILLE, TN - NOVEMBER 01: Recording artist Carrie Underwood attends the 46th annual CMA Awards at the Bridgestone Arena on November 1, 2012 in Nashville, Tennessee. (Photo by Jon Kopaloff/FilmMagic)
LOS ANGELES, CA - NOVEMBER 18: Singer Carrie Underwood poses with the Favorite Country Music Album for 'Blown Away' in the press room at the 40th American Music Awards held at Nokia Theatre L.A. Live on November 18, 2012 in Los Angeles, California. (Photo by Jason Merritt/Getty Images)
LOS ANGELES, CA - NOVEMBER 18: Recording artist Carrie Underwood arrives at The 40th American Music Awards at Nokia Theatre L.A. Live on November 18, 2012 in Los Angeles, California. (Photo by Jon Kopaloff/FilmMagic)
LAS VEGAS, NV - DECEMBER 10: Singer Carrie Underwood arrives at the 2012 American Country Awards at the Mandalay Bay Events Center on December 10, 2012 in Las Vegas, Nevada. (Photo by Christopher Polk/ACA2012/Getty Images)
LOS ANGELES, CA - FEBRUARY 10: Singer Carrie Underwood attends the 55th Annual GRAMMY Awards at STAPLES Center on February 10, 2013 in Los Angeles, California. (Photo by Lester Cohen/WireImage)
LAS VEGAS, NV - APRIL 07: Singers/musicians Carrie Underwood arrives at the 48th Annual Academy of Country Music Awards at MGM Grand Garden Arena on April 7, 2013 in Las Vegas, Nevada. (Photo by Jeffrey Mayer/WireImage)
NASHVILLE, TN - JUNE 05: Musician Carrie Underwood attends the 2013 CMT Music awards at the Bridgestone Arena on June 5, 2013 in Nashville, Tennessee. (Photo by Taylor Hill/FilmMagic)
LOS ANGELES, CA - SEPTEMBER 22: Singer Carrie Underwood arrives at the 65th Annual Primetime Emmy Awards at Nokia Theatre L.A. Live on September 22, 2013 in Los Angeles, California. (Photo by Gregg DeGuire/WireImage)
NEW YORK, NY - OCTOBER 22: Singer Carrie Underwood attends T.J. Martell Foundation's 38th Annual Honors Gala at Cipriani 42nd Street on October 22, 2013 in New York City. (Photo by Taylor Hill/FilmMagic)
NASHVILLE, TN - NOVEMBER 06: Musician Carrie Underwood attends the 47th annual CMA Awards at the Bridgestone Arena on November 6, 2013 in Nashville, Tennessee. (Photo by Jon Kopaloff/FilmMagic)
NEW YORK, NY - FEBRUARY 07: Carrie Underwood attends the Peter Som show during MADE Fashion Week Fall 2014 at Milk Studios on February 7, 2014 in New York City. (Photo by Gary Gershoff/WireImage)
AUSTIN, TX - MARCH 29: Musician Carrie Underwood poses in the iHeartRadio Country Festival photo room at The Frank Erwin Center on March 29, 2014 in Austin, Texas. (Photo by Merrick Ales/WireImage)
LAS VEGAS, NV - APRIL 06: Recording artist Carrie Underwood attends the 49th Annual Academy Of Country Music Awards at the MGM Grand Garden Arena on April 6, 2014 in Las Vegas, Nevada. (Photo by Jason Kempin/WireImage)
NASHVILLE, TN - JUNE 10: Singer Carrie Underwood attends the 2015 CMT Music awards at the Bridgestone Arena on June 10, 2015 in Nashville, Tennessee. (Photo by Larry Busacca/Getty Images)
NASHVILLE, TN - JUNE 10: Singer Carrie Underwood attends the 2015 CMT Music awards at the Bridgestone Arena on June 10, 2015 in Nashville, Tennessee. (Photo by C Flanigan/WireImage)
NASHVILLE, TN - JUNE 13: Singer-songwriter Carrie Underwood attends a pre-show press conference during day 3 at the 2015 CMA Festival on June 13, 2015 in Nashville, Tennessee. (Photo by Terry Wyatt/Getty Images)
LOS ANGELES, CA - FEBRUARY 15: Recording artist Carrie Underwood attends The 58th GRAMMY Awards at Staples Center on February 15, 2016 in Los Angeles, California. (Photo by Steve Granitz/WireImage)
LONDON, ENGLAND - MARCH 12: Carrie Underwood on day 2 of C2C - Country 2 Country Festival at The O2 Arena on March 12, 2016 in London, England. (Photo by Burak Cingi/Redferns)
INGLEWOOD, CA - MAY 01: Singer Carrie Underwood attends the 2016 American Country Countdown Awards at The Forum on May 01, 2016 in Inglewood, California. (Photo by David Livingston/Getty Images)
NASHVILLE, TN - NOVEMBER 02: Carrie Underwood poses with award backstage during the 50th annual CMA Awards at the Bridgestone Arena on November 2, 2016 in Nashville, Tennessee. (Photo by John Shearer/WireImage)
NASHVILLE, TN - NOVEMBER 02: Singer-songwriter Carrie Underwood attends the 50th annual CMA Awards at the Bridgestone Arena on November 2, 2016 in Nashville, Tennessee. (Photo by Taylor Hill/Getty Images)
LOS ANGELES, CA - FEBRUARY 12: Singer Carrie Underwood attends The 59th GRAMMY Awards at STAPLES Center on February 12, 2017 in Los Angeles, California. (Photo by Steve Granitz/WireImage)
BEVERLY HILLS, CA - JANUARY 08: Carrie Underwood arrives at the 74th Annual Golden Globe Awards at The Beverly Hilton Hotel on January 8, 2017 in Beverly Hills, California. (Photo by Steve Granitz/WireImage)
Recording artist Carrie Underwood arrives for the 52nd Academy of Country Music Awards on April 2, 2017, at the T-Mobile Arena in Las Vegas, Nevada. / AFP PHOTO / Tommaso Boddi (Photo credit should read TOMMASO BODDI/AFP/Getty Images)
NASHVILLE, TN - JUNE 07: Carrie Underwood attends the 2017 CMT Music Awards at the Music City Center on June 7, 2017 in Nashville, Tennessee. (Photo by Jeff Kravitz/FilmMagic)
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Photos of Underwood's very first red carpets in the mid-2000s show her wearing some questionable outfits -- gowns with incredibly bold prints or silhouettes were her go-to's. It was clear that Underwood hadn't found her aesthetic yet.

As her career blossomed, so did her style. Through the years, Underwood has transformed into one of the most stylish stars in Hollywood.

The 34-year-old singer has attended quite a few awards shows -- from the Grammys to the Golden Globes -- and she has stolen the show on the red carpet every single time.

Her strapless, glitter-filled ensemble at the 68th Annual Golden Globe Awards remains one of her most memorable looks ever! Likewise, her Old Hollywood-inspired gown at the 49th Annual CMA's was a total showstopper.

For more casual red carpet events, Underwood opts for flirty mini dresses that show off her phenomenal figure. If you got it, flaunt it!

The hitmaker has dialed back on her red carpet appearances in recent years, but when we do have a Carrie Underwood sighting, it never disappoints. Check out the slideshow above for more on Underwood's style transformation.

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