300.Janelle.tg.080911230mug.jpgJenelle Evans, star of Teen Mom 2, is back behind bars after violating her probation in North Carolina.

The 19-year-old star was sentenced to 12 months probation back in April after pleading guilty to drug possession.

After being arrested Monday, the Brunswick County Sheriff's Department says Evans tested positive for opiates and marijuana.

Evans was held on $10,000 bond. Find out when Evans is due back in court ... after the jump.