The Pearsons gather for Kate’s wedding.

Air Date: Tuesday, April 19 (09:00PM – 10:01PM) on NBC.

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THIS IS US -- “Day of the Wedding” Episode 613 -- Pictured: (l-r) Sterling K. Brown as Randall, Susan Kelechi Watson as Beth, Alexandra Breckinridge as Sophie -- (Photo by: Ron Batzdorff/NBC)