Lady Antebellum and Lady Gaga were the toast of the Grammy Awards in Los Angeles on Sunday night after picking up nine awards between them.
Country trio Lady Antebellum claimed five accolades for their single and album "Need You Now," including Record and Song of the Year, while Gaga scored wins for Best Female Pop Vocal Performance and Best Short Form Video for "Bad Romance" and Best Pop Vocal Album and Best Pop Vocal Album for "The Fame Monster."
But the surprise of the night came right at the end of the ceremony when indie darlings Arcade Fire picked up Album of the Year honors for "The Suburbs," beating favorites Eminem and Lady Antebellum.
The night's triple winners were rocker Jeff Beck, John Legend and Jay-Z, while The Black Keys and Usher were among the double winners.
Eminem, who led the nominations with 10, went home with two and Justin Bieber was a surprise non-winner. He lost out to little-known jazz performer Esperanza Spalding in the Best New Artist category, while Lady Gaga beat him in the Best Pop Vocal Album.
The highlight of the ceremony at the Staples Center came when Gwyneth Paltrow joined Cee Lo Green and The Muppets for a colorful rendition of Forget You. Other stars who wowed with performances included Arcade Fire, Katy Perry, who kicked off her set from a perch as footage from her wedding to Russell Brand was beamed onto a backdrop behind her, Barbra Streisand, Eminem, Dr. Dre and Rihanna and Mick Jagger, who brought the star-studded audience to its feet with a rousing tribute to Solomon Burke in his first Grammys set.
And the ceremony opened in style as Christina Aguilera, Martina McBride and Jennifer Hudson joined a group of leading ladies to pay a musical tribute to Queen of Soul Aretha Franklin.
The full list of winners is:
Record Of The Year: Lady Antebellum - "Need You Now"
Album Of The Year: Arcade Fire - "The Suburbs"
Song Of The Year: Lady Antebellum - "Need You Now"
Best New Artist: Esperanza Spalding
Best Female Pop Vocal Performance: Lady Gaga - "Bad Romance"
Best Male Pop Vocal Performance: Bruno Mars - "Just The Way You Are"
Best Pop Performance By A Duo Or Group With Vocals: Train - "Hey, Soul Sister" (Live)
Best Pop Collaboration With Vocals: Herbie Hancock, P!nk, India.Arie, Seal, Konono No. 1, Jeff Beck & Oumou Sangare - "Imagine"
Best Pop Instrumental Performance: Jeff Beck - "Nessun Dorma"
Best Pop Instrumental Album: Larry Carlton & Tak Matsumoto - "Take Your Pick"
Best Pop Vocal Album: Lady Gaga - "The Fame Monster"
Best Dance Recording: Rihanna - "Only Girl (In The World)"
Best Electronic/Dance Album: La Roux - "La Roux"
Best Traditional Pop Vocal Album: Michael Buble - "Crazy Love"
Best Solo Rock Vocal Performance: Paul McCartney - "Helter Skelter"
Best Rock Performance By A Duo Or Group With Vocals: The Black Keys - "Tighten Up"
Best Hard Rock Performance: Them Crooked Vultures - "New Fang"
Best Metal Performance: Iron Maiden - El Dorado
Best Rock Instrumental Performance: Jeff Beck - "Hammerhead"
Best Rock Song: Neil Young - "Angry World"
Best Rock Album: Muse - "The Resistance"
Best Alternative Music Album: The Black Keys - "Brothers"
Best Female R&B Vocal Performance: Fantasia - "Bittersweet"
Best Male R&B Vocal Performance: Usher - "There Goes My Baby"
Best R&B Performance By A Duo Or Group With Vocals: Sade - "Soldier Of Love"
Best Traditional R&B Vocal Performance: John Legend & The Roots - "Hang On In There"
Best Urban/Alternative Performance: Cee Lo Green - "F*** You"
Best R&B Song: John Legend & The Roots - "Shine"
Best R&B Album: John Legend & The Roots - "Wake Up!"
Best Contemporary R&B Album: Usher - "Raymond V Raymond"
Best Rap Solo Performance: Eminem - "I'm Not Afraid"
Best Rap Performance By A Duo Or Group: Jay-Z and Swizz Beatz - "On To the Next One"
Best Rap/Sung Collaboration: Jay-Z and Alicia Keys - "Empire State Of Mind"
Best Rap Song: Jay-Z and Alicia Keys - "Empire State Of Mind"
Best Rap Album: Eminem - "Recovery"
Best Female Country Vocal Performance: Miranda Lambert - "The House That Built Me"
Best Male Country Vocal Performance: Keith Urban - "'Til Summer Comes Around"
Best Country Performance By A Duo Or Group With Vocals: Lady Antebellum - "Need You Now"
Best Country Collaboration With Vocals: Zac Brown Band & Alan Jackson - "As She's Walking Away"
Best Country Instrumental Performance: - Marty Stuart - "Hummingbyrd"
Best Country Song: Lady Antebellum - "Need You Now"
Best Country Album: Lady Antebellum - "Need You Now"
Best Compilation Soundtrack Album For Motion Picture, Television Or Other Visual Media: Various Artists - Crazy Heart