Mabel reportedly married her fiancé Preye Crooks over the weekend.
The Don't Call Me Up singer reportedly exchanged vows with the music executive in London on Saturday before celebrating their nuptials with around 150 guests at the Victoria and Albert Museum.
"It was quite an intimate affair initially - they had a nice dinner with their closest friends and family to kick things off," a source told The Sun. "Then more of their loved ones turned up to celebrate with them in style later in the evening."
They added, "They all had a brilliant time and Mabel and Preye looked so in love."
Guests reportedly included TV presenter Miquita Oliver, whom Mabel previously called her "big sister", and her TV chef mum Andi Oliver.
The Mad Love hitmaker, who is the daughter of Swedish singer Neneh Cherry and English music producer Cameron McVey, has yet to comment on the report.
Mabel began dating Preye, the son of former footballer Garth Crooks, in 2021, and they got engaged in November last year. She posted pictures from her bridal shower, for which she wore a flowing white dress, earlier this month.
During a recent appearance on the YouTube show Comfortably Speaking, Mabel revealed that she wanted to keep her wedding private and was planning to ban guests from posting photos on social media.
She added that her mum "just cries all the time" because she's so excited about her wedding and her parents are "very happy about the man that (she's) marrying".
