The singer said 'I do' to Zero 7 musician Henry Binns in a vintage lace gown that belonged to her mother, Rosamond, Countess of Cardigan who died from cancer four years ago.
Bruce, whose full name is Lady Catherine Anna Brudenell-Bruce, and Binns had a formal ceremony at a church in early June, before celebrating with guests in the woods of Savernake Forest in Wiltshire.
She told Hello!: "It was pretty magical. I've always felt my mum is there in the woods and wearing her wedding dress meant she was with me all day.
"I married my best friend, we do everything together and are always in hysterics, which I think is important. It still feels a bit surreal that we are married, I feel very lucky."
Guests at the wedding included Snow Patrol drummer Jonny Quinn and model and actress Gabriella Wilde.
Bruce was the runner-up on The Voice in 2012.
:: Read the full article in HELLO! out now