Pearce and his ex-wife Julie got married in 2010 and divorced in 2023. They were separated before the divorce.

Recently, former Celtic General Pierce participated in the podcast program The Truth After Dark, and talked about some taboo topics with female host Azar.

"To be honest, if I had no mistress, I wouldn't have been in the Celtics. Do you understand what I mean? This is real in today's society. This is what I want to tell you. My ex-wife can tell you that I had to beat my mistress for a while, otherwise I wouldn't be able to go home. Because I always restricted me from going home. In fact, it was she who maintained the shaky marriage between my ex-wife and I, which is why I didn't divorce my ex-wife early. If it weren't for my mistress, I would have divorced long ago, would you understand?" Pierce said.