Christina Aguilera “More Confident” With Second Child

Christina Aguilera “More Confident” With Second Child
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Christina Aguilera is a new mom for the second time, and she's loving it. 

“She’s definitely more confident the second time around with motherhood,” an Aguilera insider tells PEOPLE. The Voice coach and singer is mom to Max, 6, and her newest addition — baby Summer, 3 months.

SEE: Christina Aguilera reveals reason for naming her newborn daughter Summer!

"The baby has been great," the source adds. Engaged to Matt Rutler, the 33-year-old has been making headlines for her amazing post-baby body, but the source adds that's not her only objective. 

MORE: 17 amazing post-baby bodies!

“Her focus is really happiness within,” says the source. “Her workouts consist … of things that balance her mind, body and soul.”