This week’s OK! Magazine cover features a photograph of Britney Spears with the headline, “Britney Lost 15 Lbs in Just 4 Weeks!” and a subhead, “Back to her old body with the miracle food that sheds weight fast.”

Back to her old body, indeed. The image OK! uses to show Britney’s transformation is actually from a 2003 photo shoot for Glamour’s Women of the Year issue.

With rave reviews of her guest spot on “How I Met Your Mother,” Britney does ...