Grammy Awards 2015: Winners List

— -- The brightest stars won big on Sunday at the 2015 Grammy Awards in Los Angeles.

Just a couple hours before the start of the Grammy Award ceremony telecast, the late Joan Rivers won her first award posthumously for Best Spoken Word Album for "Diary of a Mad Diva."

Pharrell and Sam Smith had a monster night, both winning multiple awards. Pharrell picked up a Grammy for Best Pop Solo Performance for his incomparable song "Happy," while Smith picked up the first Grammy of the telecast, winning for Best New Artist. He later added Grammys for Best Pop Vocal Album and Best Song for "Stay With Me" and the biggie -- Record of the Year.

It really was Smith's night to shine!

Here are the rest of the nominees and winners already announced.

Record of the Year

"Stay with Me (Darkchild Version)," Sam Smith WINNER

Album of the Year

Morning Phase, Beck - WINNER

Best New Artist

Sam Smith - WINNER

Song of the Year

"Stay with Me," Sam Smith, songwriters Sam Smith, James Napier & William Phillips - WINNER

Best Pop Solo Performance

"Happy," Pharrell Williams - WINNER

Best Pop Duo/Group Performance

"Say Something," A Great Big World feat. Christina Aguilera - WINNER

Best Pop Vocal Album

In the Lonely Hour, Sam Smith - WINNER

Best Dance Recording

Rather Be, Clean Bandit Featuring Jess Glynne - WINNER

Best Dance/ Electronic Album

Syro, Aphex Twin - WINNER

Best Country Album

Platinum, Miranda Lambert - WINNER

Best R&B Performance

Drunk in Love, Beyonce and Jay Z - WINNER

Best Rock Album

Morning Phase, Beck - WINNER

Best Rock Song

"Ain't It Fun," Paramore, songwriters Hayley Williams and Taylor York - WINNER

Best Rock Performance

"Lazaretto," Jack White, songwriter Jack White - WINNER

Best Music Video

Happy, Pharrell Williams – WINNER

Best Alternative Music Album

St. Vincent, St. Vincent - WINNER

Best Urban Contemporary Album

G I R L, Pharrell Williams - WINNER

Best Country Song

"I'm Not Gonna Miss You," Glen Campbell, songwriters Glen Campbell, Julian Raymond - WINNER

Best Country Solo Performance

"Something in the Water," Carrie Underwood - WINNER

Best Country Duo/Group Performance

The Band Perry – "Gentle On My Mind" - WINNER

Best Traditional Pop Vocal Album

Cheek to Cheek, Tony Bennett & Lady Gaga - WINNER

Best Spoken Word Album

Diary of a Mad Diva, Joan Rivers - WINNER

Best Metal Performance

The Last in Line, Tenacious D – WINNER

Best Rap Album

Eminem - The Marshall Mathers LP2 - WINNER

Best Surround Sound Album

Beyoncé - Beyoncé - WINNER

Best Musical Theatre Album

Beautiful: The Carole King Musical - WINNER