Christina Aguilera allows her children to borrow her clothes

Christina told PEOPLE: "It's fun to see how they wear things in different ways than I do, and reinterpret my fashion choices in ways that make it their own."

Christina's children already have a strong sense of their own style, and the pop star has always encouraged them to "express their uniqueness".

She said: "They both have good personal style and know exactly who they are. I've always raised them to express their uniqueness."

Christina is ultimately determined to instil good values into her kids.

The 'What a Girl Wants' hitmaker explained: "Defining beauty for me is about feeling comfortable in your own skin, and that's a message I always try to encourage my kids to instil in themselves.

"No one else can define what beauty means to you. Expressing myself creatively brings me joy and that comes from various styles and looks."

Meanwhile, Sabrina Carpenter recently heaped praise on Christina, describing the singer as a pop "icon".

The blonde beauty was a huge fan of Christina during her younger years, and the 'Candyman' hitmaker inspired Sabrina to pursue a career in the music business.

Sabrina, 25 - who has also enjoyed success as an actress - recently told Paper magazine: "I love Christina. That was one of my very first idols and icons.

"I was 11 years old and you couldn't get her name out of my mouth. She's very special to me. Those songs raised me."