In People v. Hopp, 209 Ill. 2d 1, 8, 805 N.E.2d 1190, 1194, 282 Ill. Dec. 173 (2004), the Illinois Supreme Court found that the court erred when it failed to give a pattern jury instruction defining first degree murder where the defendant was charged with conspiracy to commit first degree murder. Hopp, 209 Ill. 2d at 7, 805 N.E.2d at 1194. In that case, the jury was instructed under IPI Criminal 4th No. 6.03 of the elements of the crime of conspiracy. Hopp, 209 Ill. 2d at 7, 805 N.E.2d at 1194. The committee note to that instruction states that the court must also give an instruction defining the offense that is the alleged subject of the conspiracy. Hopp, 209 Ill. 2d at 7, 805 N.E.2d at 1194. In that case, the court found that it was mandatory that the trial court give an instruction defining first degree murder. Hopp, 209 Ill. 2d at 7, 805 N.E.2d at 1194. However, the court ultimately concluded that the court's error did not rise to the level of plain error. Hopp, 209 Ill. 2d at 18-19, 805 N.E.2d at 1200.