It’s in aid of Saving Strays, which rescues, rehabilitates and rehomes abandoned and abused dogs from Bosnia.
Peter rescued his own pup Tidus from Sarajevo and brought him back to his home in Chertsey.
The actor, who is an ambassador for the charity, explains how money raised is spent by it.
The Christmas Concert will take place at Guildford Cathedral on November the 24th with tickets available via its website.