Ashlee's Advice to Nicole: "Say Your Prayers!"

When OK! caught up with pop star Ashlee Simpson over the weekend before her concert at Mixx inside Atlantic City's Borgata casino and hotel, we had to ask what she thought about reports that new mom Nicole Richie might star on stage as Roxie Hart in the hit musical Chicago.

This is a role near-and-dear to Ashlee, who suprised many London theatergoers when she took over the role of Roxie for a five-week run in the fall of 2006, and the little sis of Jessica Simpson has some advice for Nicole should she decide to make the leap from the small screen to the stage.

"Work really hard," Ashlee tells OK!, "and say your prayers!"

As for whether or not she'd be willing to revisit the part of Roxie, Ashlee says, "It's a lot of hard work and it's a great, fantastic show and I would love to do it again."

Of course Ash probably won't have the time to think about working in theater anytime in the near future, with a new album hitting stores soon. However, she doesn't seem to be overloaded yet by all the work. "It's going well," she explains to OK!. "I'm busy hitting up all the radio stations now. We have a new single, 'Little Miss Obsessive,' coming out. Everything is great!"

And while the 23-year-old tells OK! her hectic schedule keeps her from partying too hard on this tour, she does confess that it's interfering with one of her favorite pleasures in life. "I'm one of those people who likes to sleep in," she confesses. "I like to be late."

By Alisandra Puliti