PHOENIX—Veteran rocker Tom Petty, known for such classic hits as "Mary Jane's Last Dance," "The Waiting," and "Refugee," announced Monday that he will be using the Super Bowl XLII Halftime Show as a forum to "test out" some new songs that he's been working really hard on lately. "There's this one cool one that I'm pretty excited about that's called, like, 'Down And Out,' because it has this really down-and-out-like 'feel' to it—it doesn't have a chorus yet, but I think we're gonna open with that," Petty said, describing the song as "like 'Free Fallin',' but weirder." "After that, we'll probably do two different versions of 'Rock Rock Rock (Yeah!)' and see which one the crowd likes better. Then I have this guitar riff which technically doesn't have a song to go with it but it sounds awesome, and then [keyboardist] Benmont [Tench] wrote a song about the Super Bowl that I said I'd let him play." Petty has told the 65,000 fans in attendance and the estimated 95 million TV viewers that any feedback, positive or negative, would be appreciated.