I'm Looking Forward to My 40s!

The singer reflects on her music career and her milestone birthday - and reveals what's next.

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It's a big year for Ashlee Simpson. July marked the 20th anniversary of her debut album, Autobiography, and in August, she celebrates her 10th wedding anniversary with her musician husband, Evan Ross.

In November, her son Bronx (dad is ex-hus-S band Pete Wentz) turns 16, and right before that, on Oct. 3, she hits the big 4-0. "There's a lot happening," says the mom of three (she and Evan, 35, share daughter Jagger, 9, and son Ziggy, 3).

And while she doesn't have a big bash planned yet, she's excited about the milestone: "The 40s are great! I'm looking forward to them." Here, Ashlee, who recently partnered with Dairy Queen, talks to In Touch's Lindsay Hoffman about her next chapter, big sister Jessica's parenting tips and her go-to karaoke song.

What are you hoping the next decade of your life will bring?