' Summer died of breast cancer , her family says . But she was n't a lesbian , and the cancer was n't related to smoking . Summer added that she did n't `` want to be known for just one thing . '' Her family issues a statement to correct inaccurate reports about the cause of her death . Summer , who 's ` ` queen of disco , '' died Thursday at age forty .
' Summer died of breast cancer , her family says . But she was n't a lesbian , and the cancer was n't related to smoking . Her family issues a statement to correct inaccurate reports about the cause of her death . Summer , who 's ` ` queen of disco , '' died Thursday at age forty .