Tyrus and Kat celebrate Kat's "21st" birthday.
Tyrus explains the main difference between his dog, Sugar and Kat dog, Karl.
Kat reminisces about her favorite Halloween costumes.
Hot Topic: Kat's fiancée Cam shares what he used to get trick-or-treating.
Follow Tyrus on Twitter: @PlanetTyrus
Follow Kat Timpf on Twitter: @KatTimpf