got engaged to her love, Travis Clark, back in April, but now you can finally see the romantic marriage proposal on the Bates family's reality show -- complete with a sweet serenade!On Thursday's season 10 finale, Travis performs the song he wrote for Katie during the unforgettable seaside proposal and only ET has the exclusive first look at the life-changing moment for the young couple.«I'm really going to start crying,» Katie says, wiping away tears as he begins to sing the guitar ballad.
As Travis sings fairy-tale lyrics like «I promise your whole life I'll be there for you, take care of you no matter what the future holds / I'm gonna love you and never let you go,» Katie is overcome with emotion.«It means so much that Travis took time.
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