Thursday was Sen. John Edwards's turn out on the trail with Jon Bon Jovi.

The rock star appeared earlier in the week with the Democrat on the top of the ticket, Sen. John F. Kerry, who by Thursday had moved on an even bigger name from New Jersey: Bruce Springsteen.

Bon Jovi, joined only by a violinist, hooked up with Edwards (D-N.C.) at a rally in the gymnasium of Simpson College in Indianoloa, Iowa, that drew about 1,000 people -- surely one of the smaller audiences Bon Jovi has played to since the 1980s, when his band started selling albums by the millions and he had much bigger hair.

After taking stage to shrieks, Bon Jovi played acoustic versions of three songs -- "Livin' on a Prayer," "Someday I'll Be Saturday Night," and "Wanted Dead or Alive" -- interspersed with a little political commentary.

Bon Jovi, who wore jeans and a tight-fitting cotton shirt, said he was distressed to find himself having to defend the United States during his international travels.

"I have to defend it in a way I never had to before," he said, adding: "We believe Mr. Kerry and Mr. Edwards would make a fine team for president and vice president."

Bon Jovi appeared before Edwards took stage, headlining an eclectic pre-program that also included Gerald W. McEntee, president of the American Federation of State, County and Municipal Employees; actor Leonardo DiCaprio; and Iowa Gov. Tom Vilsack and Sen. Tom Harkin.

Bon Jovi was also tasked with introducing the president of the Simpson County College Democrats.

"Where are you, baby?" he said when it took the young woman a few moments to appear. "Come up here."

After the rally, Bon Jovi boarded Edwards's plane with plans to accompany him at appearances up until a rally Friday night in Raleigh, N.C., Edwards's home state.