Ariana Grande Cried Onstage Singing About Mac Miller, Paid Tribute To Their First Collab

Ariana Grande performed "thank u, next" in Washington DC this week and broke down while singing about her ex, Mac Miller.

Fans at the show uploaded heartbreaking footage of Grande clearly struggling to sing her way through the track, which pays tribute to the late rapper with the line, "Wish I could say thank you to Malcolm, 'cause he was an angel".

"She cried so much here, you can tell she can barely go on," wrote one fan, @rodrigioseclen on Twitter. "Her tour mates/friends are amazing. I tried to do my part singing as loud as I could," he added.

Grande continued on with the "thank u, next" choreography but took a break from singing the chorus of the Billboard number one hit as her dancers tried to comfort her.

Grande performed in Washington DC on March 25 -- exactly six years to the day since her first collaboration with Miller ("The Way") was released.

She acknowledged the milestone on her Instagram stories, writing "six years" along with a small heart on a black background.

Miller died in September last year at just 26 after a confirmed overdose and Grande has openly shared how difficult the grieving process has been.

READ MORE: Ariana Grande Opens Up About Her Mental Health

READ MORE: Big Sean Opened Up About Dealing With Depression And Anxiety 

Following the show in Washington, Grande thanked her fans for accepting her "humanness".

"It’s super emo and difficult singing some of these songs," she wrote of the Sweetener tour setlist.

"But you make me smile. I look like penny pingleton here," she joked, making reference to her Hairspray Live! character. 

"I love u and thanks. I feel your warmth up there and it helps and is greatly appreciated," she wrote. 

Grande will be touring the United States and Canada solidly for the next three months, with dozens of dates booked for her Sweetener tour.

Just this week, Justin Bieber announced he was taking a break from music and touring to focus on his mental health to repair some "deep rooted issues".

Ariana's ex-boyfriend Big Sean also revealed on Instagram this week that he cancelled his 2018 tour because he was dealing with depression and anxiety.

If you need help in a crisis, call Lifeline on 13 11 14. For further information about depression contact beyondblue on 1300 224 636 or talk to your GP, local health professional or someone you trust.Main Image: Getty Images.

Main Image: Getty Images.