Kelly Rowland marries Tim Witherspoon in Costa Rica

Kelly Rowland attends the 22nd Annual Elton John AIDS Foundation's Oscar Viewing Party on March 2, 2014, in Los Angeles.

Frederick M. Brown/Getty Images

Kelly Rowland is a married woman.

The singer and former Destiny's Child member wed Tim Witherspoon in a "quick, simple" ceremony in Costa Rica last week, Us Weekly reports.

Rowland's pal Beyonce was reportedly among the guests at the May 9 nuptials, as was her sister, Solange Knowles (for those keeping track, the wedding took place just days after her physical attack on Jay Z in an elevator on May 5).

Beyonce shared an Instagram photo on May 10 captioned "Good Morning," but made no mention of the wedding or whether she was a bridesmaid.

Rowland, 33, confirmed her engagement last December during an appearance on "The Queen Latifah Show."

"He put a ring on it," she said, adding, "It's been a while. We've kept it very, very low -- for years, to be completely honest."

Last month, she told CBS News she was hard at work on her fifth studio album, the follow-up to 2013's "Talk a Good Game." The new album is due out this summer.