It's "Music's Biggest Night"! The Grammy Awards will crown their 2015 winners tonight (Feb. 8).

A complete list of country nominees and winners is below. This post will be updated as each category is announced.

2015 Grammy Awards Nominees
Country Categories
Best Country Album

Dierks Bentley, 'Riser'
Eric Church, 'The Outsiders'
Brandy Clark, '12 Stories'
Miranda Lambert, 'Platinum' -- WINNER
Lee Ann Womack, 'The Way I'm Livin''

Best Country Song

Glen Campbell, 'I'm Not Gonna Miss You' -- WINNER
Kenny Chesney, 'American Kids'
Eric Church, 'Give Me Back My Hometown'
Miranda Lambert, 'Automatic'
Tim McGraw (feat. Faith Hill), 'Meanwhile, Back at Mama's'

Best Country Solo Performance

Eric Church, 'Give Me Back My Hometown'
Hunter Hayes, 'Invisible'
Miranda Lambert, 'Automatic'
Carrie Underwood, 'Something in the Water' -- WINNER
Keith Urban, 'Cop Car'

Best Country Duo / Group Performance

The Band Perry, 'Gentle on My Mind' -- WINNER
Miranda Lambert and Carrie Underwood, 'Somethin' Bad'
Little Big Town, 'Day Drinking'
Tim McGraw (feat. Faith Hill), 'Meanwhile, Back at Mama's'
Keith Urban (feat. Eric Church), 'Raise 'Em Up'

Best Americana Album

Rosanne Cash, 'The River & the Thread' -- WINNER
John Hiatt, 'Terms of My Surrender'
Keb' Mo', 'Bluesamericana'
Nickel Creek, 'A Dotted Line'
Sturgill Simpson, 'Metamodern Sounds in Country Music'

Best American Roots Song

Rosanne Cash, 'A Feather's Not a Bird' -- WINNER
Jesse Winchester, 'Just So Much'
Del McCoury Band, 'The New York Trains'
Steve Martin and the Steep Canyon Rangers (feat. Edie Brickell), 'Pretty Little One'
John Hiatt, 'Terms of My Surrender'

Best American Roots Performance

Gregg Allman and Taj Mahal, 'Statesboro Blues'
Rosanne Cash, 'A Feather's Not a Bird' -- WINNER
Billy Childs (feat. Alison Krauss and Jerry Douglas), 'And When I Die'
Keb' Mo' (feat. the California Feet Warmers), 'The Old Me Better'
Nickel Creek, 'Destination'

Best Bluegrass Album

Earls of Leicester, 'The Earls of Leicester' -- WINNER
Naom Pikelny, 'Noam Pikelny Plays Kenny Baker Plays Bill Monroe'
Frank Solivan and Dirty Kitchen, 'Cold Spell'
Bryan Sutton, 'Into My Own'
Rhonda Vincent, 'Only Me'

Best Folk Album

Mike Auldridge, Jerry Douglas and Rob Ickes, 'Three Bells'
Alice Gerrard, 'Follow the Music'
Eliza Gilkyson, 'The Nocturne Diaries'
Old Crow Medicine Show, 'Remedy' -- WINNER
Jesse Winchester, 'A Reasonable Amount of Trouble'

Other Categories Featuring Country Artists
Record of the Year

Iggy Azalea feat. Charli XCX, ‘Fancy’
Sia, ‘Chandelier’
Sam Smith, ‘Stay With Me (Darkchild version)’ -- WINNER
Taylor Swift, ‘Shake It Off’
Meghan Trainor, ‘All About That Bass’

Song of the Year

Hozier, ‘Take Me to Church’
Sia, ‘Chandelier’
Sam Smith, ‘Stay With Me (Darkchild version)’ -- WINNER
Taylor Swift, ‘Shake It Off’
Meghan Trainor, ‘All About That Bass’

Best New Artist

Iggy Azalea
Bastille
Brandy Clark
Haim
Sam Smith -- WINNER

Best Pop Solo Performance

John Legend, ‘All of Me (live version)’
Pharrell, ‘Happy (live version)’ -- WINNER
Sia, ‘Chandelier’
Sam Smith, ‘Stay With Me (Darkchild version)’
Taylor Swift, ‘Shake It Off’

Best Song Written for Visual Media

Tegan and Sara (feat. the Lonely Island), 'Everything is Awesome!!!'
Ed Sheeran, 'I See Fire'
Glen Campbell, 'I'm Not Gonna Miss You'
Idina Menzel, 'Let It Go' -- WINNER
Scarlett Johansson and Joaquin Phoenix, 'The Moon Song'

Best Historical Album

Various Artists, 'Black Europe: The Sounds and Images of Black People in Europe Pre-1927'
Hank Williams, 'The Garden Spot Programs' -- WINNER
Isham Jones Rainbo Orchestra, 'Happy: The 1920 Rainbo Orchestra Sides'
Various Artists, 'Longing for the Past: The 78 RPM Era in Southeast Asia'
Various Artists, 'There's a Dream I've Been Saving: Lee Hazlewood Industries 1966-1971 (Deluxe Edition)'

See Photos From the 2015 Grammy Awards