Kelly Osbourne took to Twitter to reveal that the recent Black Sabbath reunion messed up her family's Thanksgiving celebrations, as her father was too busy.

Osbourne tweeted: Thanx [Black Sabbath] 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 [Black Sabbath], could be worse."

"[T]o make up for the fact that my dad was w/ [Black Sabbath] recording he made me the best sticky toffee pudding for Thanksgiving dinner! <3"

Watch behind-the-scenes footage from this Autumn's Material Girl Collection, and the full-length recent Black Sabbath press conference below: