The 'Fashion Police' star's dad couldn't get away from recording sessions with his reformed heavy metal band so Kelly and her mother Sharon decided to join the rockers with a feast of food yesterday (24.11.11).
The 27-year-old blonde admits her dad made up for the unusual dining arrangements by making a delicious sticky toffee pudding for dessert.
In a series of posts on her twitter page, she wrote: "thanx @OfficialSabbath 4 ruining my thanksgiving by staying in the studio u miserable old tea drinkers! ps I'm bringing u food to the studio.
"since its just me and my mum in town looks like we will now be spending thanksgiving in the studio with @OfficialSabbath could be worse :)
"to make up for the fact that my dad was w/ @OfficialSabbath recording he made me the best sticky toffee pudding for thanksgiving dinner! (sic)"
Before having her evening meal with her parents and the band - which also includes Tony Iommi, Geezer Butler and Bill Ward - Kelly was keeping her fingers crossed that her Thanksgiving turkey would be delicious.
She tweeted: "May my turkey be plump and my meal so delicious that my pies take the prize! god please make Thanksgiving dinner Stay off my thighs. (sic)"
Black Sabbath - who initially formed in 1969 - announced they were reforming for a new album and 2012 tour earlier this month.