AceShowbiz -

Heidi Montag and Spencer Pratt have finally made their union official at a wedding ceremony taking place in Pasadena, California on April 25. "Heidi Montag and Spencer Pratt joined hands in marriage during an afternoon ceremony at Westminster Presbyterian Church in Pasadena, Calif.," their representative said.

Walking down the aisle with her father, Heidi wore "a million dollars worth of diamonds over a strapless Monique Lhullier dress." As for her bridesmaids, her sister Holly Montag, and Spencer's sister Stephanie, they dressed in yellow BCBG gowns. Meanwhile, Spencer himself wore Ermenegildo Zegna suit accented with diamond cufflinks.

After exchanging vows, the newlywed couple went to the Beverly Wilshire Hotel. Heidi changed her wedding dress into a shorter white dress before enjoying an intimate reception in the hotel with Spencer as well as "200 family and friends". Fruity margaritas and snacked-on appetizers like tuna tartare and chicken salad were served.

Among the guest attending the bash were Lauren Conrad, Brody Jenner and his girlfriend Jayde Nicole, Audrina Patridge, Frankie Delgado, Kristin Cavallari and Lo Bosworth. Music producers David Foster and Cathy Dennis were also present. Furthermore, Heidi's mother, Darlene, was also spotted among the guests even though she previously opposed the couple's elopement in Mexico back on November 20, 2008.

Heidi Montag and Spencer Pratt's wedding affair has been filmed for MTV's upcoming "The Hills" finale. "MTV wishes Heidi and Spencer the best," the statement from the network read. "And can't wait to share their wedding with 'The Hills' fans later this season." In the meantime, photos of their wedding can be seen on Celebrity Mania.