I never thought I'd be writing this. … I have breast cancer.

So in the coming months, you will probably notice that I will have my good days and my bad days, but I know I will get through it with the love and support of my family and friends…

To you, our viewers, please know that your thoughts and prayers very much sustain me as they always have each and every morning when I sit in the chair next to Diane and say "Good Morning America." You have always been there for me … and I love you back.

–ABC's Robin Roberts announces that she has breast cancer and is seeking treatment, attributes her discovery of the disease to her longtime friend/colleague, Joel Siegel [via ABC]