Christina Aguilera has seen some drastic ups and downs in the past year, more negative than positive. But the 30-year-old singer says she will take her experiences in stride and use what she's learned to help mentor contestants on her new NBC show, 'The Voice.'

"In light of the past year, there have been obvious setbacks," X-tina tells Us Magazine. That's an understatement. Aguilera has been at the forefront of public scrutiny in the past year -- she botched the lyrics to the National Anthem, was arrested for public intoxication, and even got divorced from hubby Jordan Bratman. "I've gone through a really hard divorce, and anyone who has gone through a divorce will speak about how hard the journey is from start to finish," she says. "It's a life-uprooting time and there have been hiccups along the way that unfortunately the whole world gets to witness and judge."

Now the 'Fighter' singer gets her chance to judge. Aguilera will mentor aspiring singers on 'The Voice' -- alongside fellow musical coaches Cee-Lo Green, Adam Levine, and country's Blake Shelton -- and says the show will be the perfect outlet to let her scars heal. "I'm actually revealing a lot about myself during this show -- a side of myself that I think a lot of people have never seen before, that only my closest friends see when the cameras go off," she says. "I just wanted to approach this show very openly. I'm human, too, and people make mistakes and go through things in life and I'm definitely taking that into the show."

She adds, "I can laugh about my own hiccups and my own experiences in life because I'm getting through it."

'The Voice' premieres on NBC on April 26.