U.N.B.E.L.I.E.V.E.A.B.L.E: Justin Bieber Smoking Pot?

Justin Bieber's year is not off to a good start.

Days after a paparazzo was killed while trying to take pictures of Bieber's Ferrari, photos have emerged of the 18-year-old singer smoking what appears to be marijuana at a big party inside a Newport Beach hotel room on Jan. 2.

TMZ obtained the snaps of Bieber holding an alleged blunt and laughing with friends, including 19-year-old Lil Twist, who was driving Bieber's car at the time the paparazzo was killed on a highway in Los Angeles, Calif., on Jan. 1.....See pictures after the cut:

According to sources at the party, Lil Twist and his brother were the ones dishing out the pot to guests.