KathNiel on PBB All In teaser video

Kathryn Bernardo and Daniel Padilla (KathNiel) are scheduled to enter the Pinoy Big Brother house, according to a "PBB All In" teaser.

kathniel pbb
Kathryn Bernardo and Daniel Padilla (Facebook)
The video plug, which teases viewers about the appearance of the Kapamilya Teen King and Queen as "PBB All In" celebrity guests, was aired during the reality show's June 20 episode.

In it is the voice of Chichay, the character Kathryn portrayed in the hit romantic-comedy series "Got To Believe," delivering the famous line "Patay agad? Ang OA naman neto. Oh, sorry po" during a scene with Joaquin (Daniel).

Pinoy Big Brother's offical Twitter account, @PBBabscbn, got KathNiel fans stoked when it posted about the love team's appearance on the show.

The rumored teenage sweethearts might enter the PBB house this Saturday or Sunday, June 21 or 22, as "PBB All In" usually features celebrity guests during weekend telecasts.

Update: The following video reveals that KathNiel will enter the PBB house on Monday, June 23.