Julia Roberts topped the list of People magazine's "World's Most Beautiful People" Wednesday, marking the 12th time that the "Erin Brockovich" star has appeared in the annual special issue.

Roberts, 42, who has 5-year-old fraternal twins and a 2-year-old son, is joined on the list by several other mothers, including Halle Berry, Angelina Jolie and Jennifer Lopez.

Garry Marshall, who directed Roberts in her breakout role in the movie "Pretty Woman" 20 years ago, said she was "as beautiful as ever."

He added: "She's much more centered and calm now and not so stressed. She is quite the mom -- very nurturing." Roberts, who won a Best Actress Oscar in 2001 for the title role in "Brockovich," will be seen next in August.

In the movie "Eat, Pray, Love" based on the best-selling memoir of the same name by Elizabeth Gilbert. Ashley Greene, 23, who plays a vampire in.

The "Twilight" movie franchise, was among the newcomers to the annual list. Her "Twilight" co-star Robert Pattinson was among the men on the list, along with Canadian teen singer Justin Bieber.

And 2009 "American Idol" runner-up Adam Lambert. Actresses Jessica Biel and Jessica Alba and singer Jessica Simpson were featured in a new "Beautiful Jessicas" section. Roberts appears on the cover of the special edition. Other celebrities who were included, but not ranked, are Jennifer Aniston, Rihanna, Taylor Swift, Beyoncé, Bradley Cooper, Johnny Depp and Patrick Dempsey. Last year, People magazine topped the list with actress Christina Applegate.