Heidi and Spencer Pratt hosted the Halloween Party at Pure Nightclub in Caesars Palace Las Vegas on Saturday night.
Spencer came dressed as a space alien, while Heidi wore a cute lacy gold dress.
Heidi told the Las Vegas Review-Journal that she and Spencer are happy to be back together.
Spencer dances with what can only be described as a Heidi blow-up doll.
Heidi Montag and Spencer Pratt hosted a Halloween Bash at Pure Nightclub in Las Vegas on Saturday night.