Bruno Mars and Kendrick Lamar stole the show, and most of the awards, at the 2018 Grammys.
Mars provided the night's big upset, taking the album of the year trophy that most critics assumed would go to Lamar's rap tour de force, Damn.
In the end, voters found Mars's crowd-pleasing R&B more palatable, while Lamar dominated the rap categories.
Alessia Cara won best new artist - making her the only female artist to win a major prize.
Stars like Lady Gaga, Kesha, Lorde and SZA were overlooked, with only 17 awards (out of a total of 86) going to women or female-fronted bands.
Mars left with six trophies in all, including the three biggest prizes: Album of the year, song of the year and record of the year.
Speaking onstage, he paid tribute to his fellow nominees, saying: "You guys are the reason why I'm in the studio pulling my hair out".
He also told the story of how, as a 15-year-old in Hawaii, he performed in a show called The Magic of Polynesia, singing songs by R&B writers Babyface, Jam & Lewis and Terry Riley.
"I'll be honest, I was incredible at 15," he laughed, before explaining how he'd wanted to recapture the sounds of those 80s and 90s hits on his latest album.
"Those songs were written with nothing but joy... and that's all I wanted to bring with this album. Hopefully I could feel that again and see everybody dancing and everybody moving."
As well as the star's own prizes, his recording engineers won a further award for their work on the album.
Grammys 2018
Album of the year: Bruno Mars - 24K Magic
Record of the year: Bruno Mars - 24K Magic
Song of the year: Bruno Mars - That's What I Like
Best new artist: Alessia Cara
Best pop album: Ed Sheeran - ÷ (Divide)
Best rock album: The War On Drugs - A Deeper Understanding
Best R&B album: Bruno Mars - 24k Magic
Best rap album: Kendrick Lamar - Damn
Source : BBC