David Livingston/Getty Images

Grammy-winning disco and R&B singer Bonnie Pointer passed away on Monday morning.

"It is with great sadness that I have to announce to the fans of The Pointer Sisters that my sister, Bonnie, died this morning," Anita Pointer tells TMZ. "Our family is devastated. On behalf of my siblings and I and the entire Pointer family, we ask for your prayers at this time."

Michael Putland/Getty Images

The Pointer Sisters (L-R) June, Ruth, Bonnie and Anita Pointer are pictured in this photo dated Jan. 16, 1974.

Bonnie founded the family group with younger sister June in Oakland, California in 1969. In December 2016, Billboard magazine ranked them as the 80th most successful dance artists of all-time.

Bonnie left in the mid-1970s to pursue a successful solo career with hits like "Heaven Must Have Sent You." The song became a top 20 pop hit in September 1979.

She released three albums as a Motown Records artist and found love at the label, marrying executive Jeffrey Bowen.

Bonnie is the second Pointer sister to pass away - June lost her battle with cancer in 2006 at age 52.

Source: WENN.com