But one particular tribute caught the eye of fans, for all the wrong reasons. It was posted by Kim Kardashian.
In a now-deleted Instagram post, Kim posted a picture of her and sister Kendall Jenner partying, while Ariana stands in front of them.
"This is truly so senseless & heart breaking. I can’t imagine the fear and agony these parents must be going through searching for their kids; Concerts are supposed to be a place where u can let loose and have fun. It’s so scary to not feel safe in this world. My heart goes out to [Ariana Grande] I love you," she captioned the photo.
The message is sweet, and what we're all thinking... but it's the photo itself that got people annoyed.
Fans have let their feelings out on Twitter, explaining why they found it insensitive.
Y I K E S.
We don't think Kim intended for her message to be insensitive, or all about her, but we can see why fans might be taking it the wrong way.
As for the incident, right now 22 fans have been reported dead, while over 59 are injured. Police have identified the suspect, who died after detonating the bomb. His name was Salman Abedi, a 22-years-old British man with Libyan origins.