AceShowbiz - Christina Aguilera made a few headlines when she kicked off her much-anticipated "Liberation Tour" at Hard Rock Live arena in Miami on Tuesday night, September 25. The blonde songstress teased a new song in the middle of the show.

Titled "Wonderland", the song was used as an interlude in between performances. It was played along with a sensual footage of Tina lounging around a room in an oversized shirt over a black tank top. "Total emancipation/ This is your invitation/ Welcome to my wonderland," she sings, showcasing her raw vocals. "It doesn't matter if they don't understand/ We are in this madness together." After that, Tina came back to the stage and launched into her Grammy-winning song "Say Something".

Tina hasn't announced an official release date for the track, though some reports suggest that the song could be a "Liberation" scrapped track.

"Liberation Tour" marks her first tour in ten years, after her 2008 "Back to Basics Tour". Considering that it has been a long time since her last tour, Tina was emotional during the Miami show. "For a long time I have missed this so much," she told concertgoers, tearing up. "I've missed you guys and it's been too long..."

"Being a mom is really important to me and I'm a very hands-on mom," the former "The Voice" coach continued. "I never want them to feel that they live in my shadow or that they are not important -- I don't wanna be that kind of mom, so I took some time off for them. But momma needs to go back to what she's meant to do."

Tina is scheduled to perform at the Mark G. Etess Arena in Atlantic City, New Jersey on September 28 before traveling to other cities such as New York, Chicago, Las Vegas and Los Angeles. She will wrap up her North American tour in Saint Petersburg, Florida on November 13.