Sony TV’s X Factor is all set to see a change in the judges albeit for a short span of time. Pritam will be part of the panel of judges and will substitute Sonu Niigaam for a week. A source tells us, “Sonu had to leave as he is performing for IIFA which is happening in Toronto this time. For him judging X factor and performing at IIFA are equally important, but due to prior commitments he had to go there for a week. Sonu will be paying a tribute to Michael Jackson at the award ceremony. Pritam will be substituting him in the panel of mentors for the time being. The first episode featuring Pritam is being shot right now and will go on air tonight.” The episodes of X factor with Pritam as the judge will be on air on June 24 and 25, 2011. We tried contacting Pritam but he remained unavailable.