WIth Lady Gaga playing it relatively safe this year, it was Miley Cyrus who made everyone's jaws drop at the 2013 MTV Video Music Awards.
The 20-year-old performed a plushie-packed rendition of her hit "We Can't Stop" before launching into a duet of "Blurred Lines" with Robin Thicke -- one that saw her stripping down to nude-colored underwear and grinding all over the married man's crotch.
Oh, did we mention Thicke's wife Paula Patton was in the audience? Awkward.
And Twitter reaction to the raunchy performance was all over the place, with fans and stars speaking out about what they just saw.
Here are some of the best celebrity reactions below -- what'd you think of it?
Thanking God for so many blessings tonight. Continue to pray for world peace. More love ...less hate.@billyraycyrus
Just saw a couple performances from the VMA's last night. 2 words.... #pitchystrippers@kelly_clarkson
Remind me to never let my kids into showbiz... Thanks@NickCannon
Thank Christ! The internet has stopped bitching about #BatFleck to bitch about Miley Cyrus' #MtvVMAs performance instead... #SentientTongue@ThatKevinSmith
It's nice that Miley is comfortable with herself.@JuddApatow
Mileys getting out- twerked by pro dancers right now. #unfortch@DavidSpade
Maybe @MileyCyrus tongue was wagging bc it's National Dog Day today!!!!@Bethenny
What if miley is just like us and woke up and is like guys what happened last night@chrissyteigen
I think Miley needs a good ol fashion smack in the ass with a wooden spoon by an old Italian lady@dinamanzo
A certain mortification swells over me when I watch particular performers.@Jaime_King
Oh my god.@Jaime_King
I'm watching the VMAs and Miley Cyrus has made me so uncomfortable. The WORST thing I have ever seen. Am I too old to understand?@JohnnyGWeir
Ok I love Miley and all I'm seeing is hate tweets. Wtf am I missing?@KailLowry
Miley killed it at vmas! New girl crush https://t.co/LpcXiDwVav@JENNIWOWW
@vma Miley Cyrus needs an early night.@driverminnie
I'm not kidding at all-I am totally into Miley Cyrus. Thats as punk rock as this night will probably get. DEAL WITH IT! Oh- Shalom 2 Chainz!@billyeichner
Check out more wild VMA moments below!