Mark Ronson

Rihanna and Adele will perform, Gaga will deliver a tribute to David Bowie and the year's biggest trophies will find their rightful owners.

Taylor Swift, Kendrick Lamar and The Weeknd are popping up across categories.

Not having the best day? These tracks will lift your spirits up in no time. Check out the 10 Perfect Songs to Get You Through a Horrible Day.

I thought this was pretty interesting so I thought I'd share. Someone took the hit song from Mark Ronson and Bruno Mars and redid it without the background music -- just singing and sound effects.