The singer/actress wed Brandon 'BJ' Cox in Fort Worth and her fellow bandmate Sabrina Bryan served as a bridesmaid.

"Guess what we did last night!," she wrote on Instagram on Sunday (18Dec16), alongside a picture from their nuptials.

She also included videos from their first dance as husband and wife.

Williams' wedding comes a month after her former bandmate Adrienne Bailon married Israel Houghton in Paris, France on 11 November (16).