Connie Britton and Charles Esten Connie Britton and Charles Esten

Nashville hunk Deacon Claybourne is about to be hit with the biggest bombshell of his life: Maddie is his daughter.

Just as Rayna (Connie Britton) and Deacon (Charles Esten) finally got back together, Rayna's daughter Maddie (Lennon Stella) found documents last week proving that Deacon, not Teddy (Eric Close), is her biological father. On Wednesday's finale (10/9c, ABC), Maddie shows up at Deacon's door with the news. How does Deacon react? As expected, not so well.

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"Tell me that you haven't been lying to me every moment of the last 13 years," he says to Rayna in the clip below.

Watch Rayna explain the truth:

Nashville finale sneak peek

Nashville's season finale airs on Wednesday at 10/9c on ABC.