David Foster and Katharine McPhee are married one year after the two announced their engagement.
The couple said "I do" in front of 150 members of their family and friends in London on Friday.
150 people watched the groom, 69, and bride, 35, exchange vows at the Church of Saint Yeghiche in South Kensington.
McPhee reportedly wore a Zac Posen wedding gown and Foster sported a tux by Stefano Ricci.