Wiz Khalifa claims Miley Cyrus "smokes a ton" of marijuana.
The 26-year-old rapper, who was arrested for multiple drug charges in 2010, recorded several songs with the former Disney star for his new album Blacc Hollywood and admits he was surprised by how much they have in common.
"I got some songs with Miley on there," Khalifa told a US talk show host earlier this week.
Asked what it was like to work Cyrus, he said: "Insane. But in a good way though, she's just a ball of energy. She smokes a ton."
Khalifa, who has 13-month-old son Sebastian with his wife Amber Rose, claims he couldn't keep track of how much Cyrus was smoking.
"I don't know," he said.
"She's younger so it's different. Every five minutes she kept being like, 'Hey Wiz, you don't have a joint rolled? What's up?' She was just blowin' like a train."
Cyrus has frequently admitted she is a big fan of the drug in the past.
"I think weed is the best drug on earth," the controversial young star previously said.
"One time I smoked a joint with peyote in it, and I saw a wolf howling at the moon."
Khalifa and Cyrus have a close friendship as his wife was previously managed by the singer's mother, Tish.