Swift scored Best Female Country Vocal Performance and Best Country Song for "White Horse," while Lady GaGa got Best Dance Recording for "Poker Face" and Best Electronic/Dance Album for "The Fame."
Best Rock Performance by a Duo or Group With Vocals and Best Rock Song went to Kings of Leon's "Use Somebody." "Wolfgang Amadeus Phoenix" by French dance-rockers Phoenix took Best Alternative Album.
"Single Ladies (Put a Ring on It)" continues to take home honors, including Best Female R&B Vocal Performance and Best R&B Song; her take on "At Last" won Best Traditional R&B Vocal Performance and her set "I Am...Sasha Fierce" took Best Contemporary R&B Album.
Jay-Z scored Best Rap Solo Performance for "D.O.A. (Death of Auto-Tune)" and Best Rap Song for "Run This Town" with Rihanna and Kanye West.
There are 29 fields for Grammy Awards -- including pop, classical, etc. -- and 109 categories within those fields. The most popular of them take place during the three-hour ceremony, held in Los Angeles.
Click here for a complete list of winners, which will be refreshed as the night wears on.
Click here to read HitFix's live-blog of the event.