Christina Aguilera’s Slimmer Figure Was The Real Champion of ‘The Voice’ Last Night

Christina Aguilera looked all sorts of uh-mazing on The Voice finale Tuesday night. Performing with Pitbull for their hit “Feel This Moment,” XTina rocked a sheer top, neon pink bra and a skin-tight black skirt, giving Miley Cyrus and her flat tummy a run for their money.

Us Weekly is reporting that Aguilera has been working hard on her new body since early May, losing an estimated 20 pounds.

“She did it all on her own,” a source told Us of the singer’s Fresh Diet meal delivery program. “She goes online and picks out her own food.”

Aguilera’s The Voice appearance comes just one month after flaunting her lean bod in an LBD at the Billboard Music Awards.

[Lead image courtesy of Getty Images/NBC Universal]