Help with finding particular episode!

Hi guys, hoping one of you geniuses can help find me which episode it is.

From what I can remember one of the characters are in a room looking for someone or something and then they come across a real life celebrity and the character says "oh my god it's **** **** I thought you were dead" and the person replies "so did I" I have been trying to find this clip for so long and no searches online helps me find it! I'm almost certain it's on Family Guy and not American Dad or anything. Any help would be greatly appreciated!!!