Sheryl Crow and Lance Armstrong Sheryl Crow and Lance Armstrong

Throughout Lance Armstrong's two-part confession to Oprah Winfrey, the cyclist revealed many details about his use of performance-enhancing drugs during his career. But one thing never mentioned throughout the televised interview: Sheryl Crow, Armstrong's former fiancée who was with him during two of his seven Tour de France victories of which he has since been stripped.

So how much did Crow know about Armstrong's use of banned substances and subsequent cover-ups? According to Celebuzz, a whole lot.

Lance Armstrong admits to doping in Oprah interview; calls his behavior "inexcusable"

Celebs who are out and proud