Montag, Pratt appear in public together

Heidi Montag and Spencer Pratt have been photographed together at a red carpet event for the first time since their alleged split.

The former stars of The Hills appeared together at a Halloween party that Montag was hosting in Las Vegas.

Gossip Cop claims that the couple were openly affectionate with each other throughout the night.

Montag filed for divorce from Pratt in July this year citing "irreconcilable differences", but called off the divorce two months later after agreeing with Pratt that they would try to make their relationship work.