The journalist, who is competing on the 13th season of Dancing with the Stars, insisted that her nipple did not show during last night's edition of the dancing competition.
"When I got dressed, I was wearing Petals (nipple covers) and an industrial strength bra... my dancing dress also had a bra sewn into it," Grace told TMZ.
She continued: "I have been judged guilty without a trial... I will go to my grave denying the nip slip."
Grace recently claimed that she is more nervous than ever about performing on the show after landing in the danger zone with the contest's first eliminee Ron Artest last week.
Dancing with the Stars continues tonight at 8/7c on ABC.
> DWTS Derek Hough: 'Ricki Lake must stop Kirstie Alley comparisons'
> Dancing with the Stars Week 2 recap: Jive, Viennese waltz & quickstep