The US rapper - whose real name was Gustav Åhr - has passed away, with his manager Chase Ortega appearing to confirm the news on Twitter.
He wrote: ''I've been expecting this call for a year. Mother f**k (sic)''
Several stars have paid tribute to the late 'Star Shopping' hitmaker, whose cause of death is not known, including Diplo and Bella.
The DJ tweeted: ''peep had so much more to do man he was constantly inspiring me. I dont feel good man (sic)''
Bella wrote: ''F**k I don't know what to say
''Peep you deserved more out of life. Life didn't do your greatness justice. (sic)''
Music producer Marshmello revealed he had spoken to Peep - who turned 21 on November 1 - just last week about teaming up on a track.
In a series of tweets, he wrote: ''I cant even believe this. We were just talking last week about working on a song together and now you're gone. You will be missed, R.I.P. @Lilpeep
''Peep was the nicest person. hanging out with him, talking to him about music, the song ideas we were going to do together and touring was so amazing. Everyone will miss you man @Lilpeep (sic)''
Rapper Chris Webby tweeted: ''RIP @Lilpeep .. you spoke to a generation different than mine, but you did it with style, originality, and star quality. Rest easy.(sic)''
Peep released his debut album, 'Come Over When You're Sober (Part One)', in August, and had been due to perform a show in Tucson, Arizona on last night (15.11.17).
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