Britney Spears is a real celebrity and she has appeared on Family Guy quite a few times. It is said that in real life, Britney is a huge Family Guy fan.
- FG321 "Family Guy Viewer Mail #1"
- FG506 "Prick Up Your Ears"
- FG605 "Lois Kills Stewie"
- FG711 "Not All Dogs Go to Heaven"