"I couldn't wait to come back to the show and have amazing laughs and a good time," said the 32-year-old Staten Island-born beauty. (She's reportedly lost 30 pounds in the past year, and showed off her body Monday in a glittery black skirt.)
"As artists we need to feel like we're appreciated and we're understood and we're given the breathing room, because we're constantly in front of the camera giving, giving, giving, giving," she said. "And then I'm a mother on top of that, and it's giving, giving, giving at home.
"And it's like, when do I get something back? You know, and I'm giving, giving to my team. And it's just like, you know, I just -- you just, you know, need to take a moment."
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Green said he missed the "camaraderie and closeness" of the panel and contestants after a season off.
Judges Adam Levine and Blake Shelton were enthusiastic about Xtina's return, with Blake saying that "Christina brings back that diva element, and that bearings back a lot of old rivalries right there."