Not a good week for Justin Bieber...

Just a few days after a video surfaced of the singer using the N-word, TMZ has obtained a second clip of Bieber using racially offensive language.

In the clip, a 14-year old Bieber does a take-off of his own song "One Less Lonely Girl" where he sings, "One less lonely n-----/ One less lonely n-----/ One less lonely n-----," adding, "If I kill you I'll be part of the KKK."

Bieber's legal team is on the hunt for whoever leaked the video, "as this is stolen property, plus there has been such a shakedown by this person trying to get a substantial amount from Justin's side," according to a source.

No word yet from Bieber's camp on this latest development.