"[We'll be participating] for about a week's worth of dates," Hough told TV Guide. "Helio saw that everybody wanted to do the tour and didn't want to be left out. I had a blast doing the last tour and if we could pop in there and do a few dates, that would be great."
While Hough said she's unsure exactly which stops the duo will be dancing at, she specifically referenced the January 18 show in Indianapolis, IN; the January 19 show in Nashville, TN; and the January 26 show in Greensboro, NC as three of the most-likely possibilities.
"That side of the country is much more likely," she told TV Guide.
Hough recently revealed she signed a recording contract with Universal Music Group Nashville and will spend the next few months in Nashville working on her debut album. In addition, Castroneves resides in Miami and the 32-year-old is also preparing for the upcoming IndyCar season, which begins in March.
During her comments, Hough also took the opportunity to once again discredit rumors that she and Castroneves are in a romantic relationship.
"I know the rumors aren't true so I'm fine with it," she told TV Guide. "But I feel bad for everybody involved. I feel bad for Helio."
Castroneves proposed to Vazquez -- a Cuban fashion designer -- last Thanksgiving, however the two decided to delay their wedding engagement when he was cast as a Dancing with the Stars celebrity participant. While Vazquez has claimed that her relationship with Castroneves ended two months, Castroneves has said otherwise and claimed that although it wasn't announced until the morning after he'd won last week's Dancing with the Stars finale, the couple's engagement and relationship had only come to an end until only a week or two before his Dancing victory.
Hough has traveled down this road before. She canceled her August 2007 wedding to former dancer Zach Wilson and was rumored to have a romantic fling with her fourth-season celebrity partner Apolo Anton Ohno, whom she also captured the mirror ball trophy with.
"I had the same thing happen when I was with Apolo, so I totally understand," Hough told TV Guide, adding it was "good to see" Ohno during Dancing with the Stars fifth-season finale broadcast.