Justin Bieber not only crashed Mariah Carey and French Montana's recording session, but also sneaked his way into their song.
The 21-year-old singer made stop at a Hollywood recording studio where the recording was going on, and confessed to Carey that he's a huge fan after which the 45-year-old singer played a portion of the song, TMZ.com reported.
Bieber right away jumped into a booth and sung some lines that'll now be featured in the song.
Also present at the recording were Kylie Jenner along with some friends.