United Kingdom, Oct. 13 -- Dionne Warwick can no longer "stand or walk" due to severe pain in her leg and foot.

The 85-year-old singer had been due to perform at the Deborah Silver and Fabulous Friends: Voices for ALS charity benefit at Carnegie Hall in New York City on Sunday (11.10.26) but she had to cancel her appearance due to her mobility issues. However, Dionne is hoping she can bounce back after a period of rest.

In a statement to New York Post column PageSix, Dionne explained: "I'm sorry to have had to cancel the chance to see you all at Carnegie. My leg and foot would not allow me to stand nor walk at the moment.

"Due to the pain, I just couldn't do anything other than cancel my appearance this time, as I focus on rest and rec...