Budding second-generation star Kelly Osbourne says father Ozzy has given her some not-too-surprising career advice -- in some rather unusual locations.

"We have sit-down talks ... in the most random places," she tells AP Radio. "We went in the bathroom, and I sat on the floor for three hours while he was talking to me. By the end of it, I was falling asleep."

In particular, the elder Osbourne apparently cautioned his daughter about life in the public eye: "He (said) the stage can be the loneliest place in the world."

The high-profile Osbourne daughter isn't the only celeb who got the "Take Our Fathers to Work Week" memo. (We apparently missed it.)

Rosanne Cash also pays tribute to her dad, Johnny Cash, with the release Tuesday of "Rules of Travel," her first album in seven years. The album includes "September When It Comes" -- a song about the mortality of a parent -- which Cash recorded with her legendary pop, AP reports.

The father-daughter duo have only recorded together once, in the early 1980s, and Cash tells the wire service that because of her father's ill health, "he was very fragile." But she added that "the fragility of it is part of the beauty to me. It's very endearing."