Teresa Giudice likes to do everything over-the-top-and that philosophy definitely applies to her daughters' Halloween costumes. "I have a tailor make their outfits," says Giudice, 38, mom to Gia, 9, Gabriella, 6, Milania, 4, and Audriana, 13 months. "One year they were the characters from Cats; another year they were Chiquita Banana girls. I always go all out-we go for fittings and everything." To celebrate PEOPLE's Halloween special, the girls got into character as some of 2010's hottest celebs, from Katy Perry
to Lady Gaga
-while Mom trotted out a look from Dancing with the Stars
. The scariest thing about Halloween for the Bravo reality star, who loves to dote on her kids? "I'm dreading the day that they want to go off and do their own thing."
GABRIELLA as Lady Gaga
Giudice's second oldest, decked out as her "favorite" singer, admits that getting glammed up isn't actually the thing she loves most about celebrating Halloween. "I like to get a lot of candy," she says. "Even though my sisters always steal it!"
GIA as Katy Perry
"I love dressing up for Halloween," says oldest daughter Gia, who's gotten a lot of practice at it lately-the working model recently did a shoot for a line of children's costumes, and she'll be featured on the packaging.
MILANIA as Ke$ha
"I was a mermaid, a cat and a butterfly," says Milania, ticking off the costumes she's sported over the years. Although the second youngest had no trouble delivering the rocker attitude dressed up as Ke$ha, "I usually like Katy Perry," says Milania. Jokes Gia: "She just wants to be whatever I'm being."
AUDRIANA as Glee
's Sue Sylvester
"Last year Halloween came right after I gave birth to Audriana," says Giudice. "So I had to buy the costumes for once." The family's game plan for Halloween 2010? "The girls will have their biggest sugar high of the year, but then they'll have to brush their teeth."