Real O'Neals: Listen to 'O Holy Night,' 'The Greatest' mashup in exclusive clip

The holidays are coming to The Real O’Neals — as is a festive musical performance.

In an exclusive clip from Tuesday’s episode, “The Real Christmas,” Kenny’s choir performs a mashup of “O Holy Night” and “The Greatest.” Kenny (Noah Galvin) begins, singing the Christmas carol softly and sweetly, then Brett (Scream’s Sean Grandillo) enters with an energetic and enthused take on Kendrick Lamar’s verse from the Sia hit. Soon, the rest of the choir joins in, building to a very big, spirited end.

Kenny and Brett sound great together, and their chemistry goes beyond music: The new choir member is Kenny’s potential love interest in the episode, so the Sia song choice feels all the more moving — its lyrics are empowering and celebrate individuality.

See that all unfold above, and catch the episode Tuesday at 9:30 p.m. E.T. on ABC. For more, head back to EW.com after the episode.