The Young Money MC reportedly hosted a bash including alcohol and marijuana as Bieber tours Europe.
While Bieber's away, Lil Twist will play.
The 20-year-old Young Money rapper -- and pop star pal -- threw a party at Justin Bieber's Calabasas home on March 19, according to TMZ, with the site claiming alcohol and marijuana were present.
Twist posted a substance-free Instagram photo of himself at the house, an image of Bob Marley on the wall behind him. TMZ's images, reportedly from the house, include a hookah and beer bottles, as well as a pool table with a "JB" insignia.