Joni Sledge of the band Sister Sledge has died at the age of 60

Joni Sledge of the band Sister Sledge has passed away at the age of 60.

The family made an announcement on Facebook last night, yet the cause of her death has not been determined.

"Yesterday, numbness fell upon our family. 

"We welcome your prayers as we weep the loss of our sister, mother, aunt, niece and cousin.

Joni was the front of her pop group along with her sisters Debbie, Kim and Kathy and are most known for their anthem We Are Family.

Our thoughts are with her family at this time.