Credit: simpson

Jessica Simpson says spring cleaning is reminding her of all her style slip-ups over the years.

On Wednesday - the same day her Oprah Winfrey interview aired in which she said she was "angry" at ex John Mayer and said she was criticized for wearing "size 4" mom jeans - she began cleaning out her closet.

"20 boxes of NO's so far," the singer, 29, Twittered.

Next to a shot of her in a sombrero, she wrote: "Really? I bought this? My lord!!"

Simpson's new VH1 reality show, The Price of Beauty, debuts March 15.