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Mark Paul Gosselaar, Catriona McGinn

LOS ANGELES, CA - JUNE 06: (L-R) Mark Paul Gosselaar and Catriona McGinn attend the 9th Annual Triumph for Teens at Hotel Bel-Air on June 6, 2012 in Los Angeles, California. (Photo by Tibrina Hobson/WireImage)

2012 Celebrity Weddings

From Jessica Biel and Justin Timberlake to Blake Lively and Ryan Reynolds, check out the many stars who tied the knot this year.