Continuity mistake: When Piper is talking to Cole, they show the other Piper on the couch. Whenever you see Piper talking, you can see that the other Piper's legs change position throughout the shot. They go from being straight to both legs bent to one leg bent to straight. (00:18:00)
Continuity mistake: In this episode, Phoebe told Drake that she "can't believe it's been three weeks already", but Drake said in "Carpe Demon" that he only had two weeks to live.
Continuity mistake: After Leo rescues the driver in Texas, when it cuts to the manor Phoebe is wearing a pair of white gloves which she takes off and puts in her pocket, but when Phoebe insists she will not save another innocent until she finds out what happened to Leo, Phoebe is wearing both gloves again. (00:07:45)
Answer: "Hush, Hush, Hush" Paula Cole.