Sofia Vergara and Joe Manganiello kicked off their exciting wedding weekend with a preparty in Palm Beach, FL, on Saturday, with family and friends all gathering to celebrate their upcoming nuptials. Sofia, who wore a sheer white cover-up paired with a matching swimsuit, was spotted happily sipping from a coconut while mingling with her guests. The soon-to-be husband and wife also took to Instagram to share several fun snaps from the celebration. Their guests also posted sweet moments, including a short clip of Joe serenading Sofia with Guns N' Roses' "Sweet Child O' Mine." Sofia and Joe are set to tie the knot in an over-the-top wedding on Sunday at The Breakers Palm Beach resort. Keep reading for more of the prewedding festivities, and then get all the details on one of the most anticipated events of the year!