Hollywood star Bette Midler made a very special telephone call to one of her biggest fans recently.

The actress and singer got in touch with Anna Greenberg, who was in hospital with cancer at the time, when she heard that she had taken a turn for the worse.

During the conversation Anna asked Bette if she would make one of her dreams come true by singing Wind Beneath My Wings to her. "Of course I will," the Oscar nominee replied before belting out the entire song over the phone.

Shortly after the video was taken 29-year-old Anna, who met her idol at a film screening previously, passed away.

Her brother Aaron Greenberg decided to upload the emotional clip to YouTube.