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Watch: ‘The Voice’ contestant Kristen Merlin, of Hanson

Before Kristen Merlin, of Hanson, became a contestant on "The Voice," she won a national contest that resulted in her singing with Sugarland on stage in Las Vegas, and she performed with Bryan White at Boston’s Outside the Box Festival last summer. But no performance has been as important or nerve-racking as one a few weeks ago, when the 29-year-old sang on the NBC show. Watch clips of Merlin performing on "The Voice" and in other venues before her time as a contestant in the singing competition.

Kristen Merlin performed "Something More" during her audition for "The Voice."

Merlin performed "Babygirl" with Sugarland in Las Vegas before becoming a contestant on "The Voice."

Merlin sang the national anthem at Fenway Park in 2011.

Merlin performed "When I'm Gone" at a wedding in Bedford, N.H., in 2013.

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