Rimes has admitted to cheating on her ex-husband Dean Sheremet, with Eddie Cibrian, who was married at the time.
Here's the apology that Shape editor-in-chief Valerie Latona sent to angry readers:
Subject: To my dear Shape readers
You are all in good company (why I'm e-mailing you all together) as you all agree Shape has made a terrible mistake in putting LeAnn Rimes on the cover.
Please know that our putting her on the cover was not meant to put a husband-stealer on a pedestal-but to show (through her story) how we all are human. And this woman in particular found strength in exercise in what she said was her most difficult personal moment.
But it did not come across that way … And for that I'm terribly sorry.
I hope that we can do better the next time for those of you that will give us another chance.
We give credit to Shape for making the effort to reach out to their fans, in an effort to regain their trust.