"He dressed me tonight," Madonna said of her son, Banda. Here they pose rocking some matching Ralph Lauren suits.
Look who caught one of the bouquets from the "Same Love" onstage marriages! Katy Perry Instagrammed her best wishes to the newlyweds.
Thirty Seconds To Mars meet up with Stevie Nicks on the red carpet.
The flowing locks and open jaws of a crazed Jared Leto versus Zedd in a moment of "clarity."
2 Chainz and Travis Scott share a moment backstage.
They didn't have time to clean up, but Imagine Dragons kept it cool after their performance with Kendrick Lamar.
"BACKSTAGE AND EXCITED" announced Taylor Swift along with this shot.
Kaskade takes a quick mirror selfie to make sure everything is in order before heading out to the GRAMMYS.
Katy Perry shares a smile with up-and-coming Disclosure collaborator Sam Smith.
Madonna plays mom as she escorts her son David down the red carpet.
Artist Mina Kwon's interpretation of Pharrell's park ranger-style hat made it onto the star's Instagram.
Musical elder statesmen and 2014 GRAMMY performers Paul McCartney and Nile Rodgers pose together.
Miguel shows off his Saint Laurent pants and shoes.
And later on, Miguel shows off his hot tub crew.
"Same Love" singer Mary Lambert takes a photo with her parents.
Lorde tests out a sleeveless look prior to the show.
Lorde models the black silk dress she later wore to the big event.
A trio of EDM stars: Zedd, Kaskade, and Alvin Risk.
Miguel, Nazamin Mandi, Chrissy Tiegen, John Legend
Jay Z and Beyonce
Madonna gets in costume for her guest spot in Macklemore & Ryan Lewis' "Same Love."
Jared Leto's locks were worth another look.
Thirty Seconds to Mars pose for a few group shots.
Pharrell's now-legendary over sized hat makes its first appearance alongside Ryan Seacrest on the red carpet.
A seasoned pro at red carpet events, Madonna shows off her Ralph Lauren suit to Ryan Seacrest.
Kendrick Lamar models his perfectly-tailored blue blazer alongside Ryan Seacrest.
Ryan Lewis takes a cute black and white shot with his girlfriend Jackie Ganger.
Ryan Lewis snagged a memorable shot of a special pair of newlyweds during the performance of "Same Love": "My sister Laura and her man Alex got married tonight during the performance! Here's to them! They're the best!!!!!"
P!nk snags an early shot of the GRAMMY stage before the show begins.
"Get Lucky" collaborator Nile Rodgers finds himself in between a sandwich of Ryan Lewis and Macklemore.
The metal legends find their seats amongst the GRAMMYs' many distinguished guests.
Hosting the GRAMMYs means LL Cool J gets to hang out with legends like Paul McCartney.
Keith Urban snags a selfie en route to the show.
It's an aerial selfie of John Legend and Chrissy Teigen, with a photobomb courtesy of Neil Patrick Harris!
Cheer up, Austin Mahone! The young singer looks a tad concerned on the red carpet.