Kelly Osbourne kept true to the final promise she made her dad before his passing. Ozzy Osbourne’s “favorite kid,” Kelly, 40, has been following her dad’s advice to “celebrate what people have done in life,

The last few days have been a tough ride, but Kelly has been focused on executing plans with her mom,” a source told the Daily Mail Thursday.

Kelly Osbourne is keeping the promise she made to her dad. The daughter of Ozzy Osbourne and Sharon Stone was present at her dad's funeral, serving as an anchor to her devasted mother and her siblings.