Chaka Khan: Prince's death made me realise I need rehab

Singer Chaka Khan and her sister have entered a drug rehabilitation programme to battle their addictions to prescription drugs.

The 63-year-old soul singer said the death of her good friend Prince led her to realise she needed help.

In a statement she revealed she was battling an addiction to the same medication that led to Prince's death in April this year.

An autopsy found he died of an overdose of fentanyl, a powerful opioid painkiller.

Khan has entered an intensive rehabilitation and aftercare programme with sister, Yvonne Stevens, also known as Taka Boom.

She said the pair "agreed we would take this journey together and support each other through the recovery".

Khan covered Prince's song I Feel For You, which became one of her biggest hits. The two were long-time friends.

The singer cancelled a number of US concerts over the summer.

She apologised to fans but said: "It's vital that I put my health and well-being first.

"I know that I am disappointing some of my fans, but I also know they would want me to recover and be well and healthy."