CNN

Dodd, right, with Paul Simon on the campaign trail in Iowa.

Huckabee has three concerts planned this weekend.

WASHINGTON (CNN) - Looking to turn up the volume on their White House bids, a couple of so-called second tier presidential candidates are adding a musical twist to the campaign trail this week.

Connecticut Democratic Sen. Chris Dodd, in Iowa, is hitting the trail with Grammy-award winning singer/songwriter Paul Simon. Simon joined Dodd on Friday in Mason City, and will travel with the Connecticut Democrat to Fort Dodge, Sioux City, Carroll, and Council Bluffs over the next two days.

Simon, who Dodd called a "longtime friend," is expected to perform in Fort Dodge.

Meanwhile, former Arkansas GOP Gov. Mike Huckabee, a musician himself and the front man of the band "Capitol Offense," has three concerts scheduled in New Hampshire this weekend.

The band will perform Friday night at a house party in Dover before heading to Nashua for an outdoor concert Saturday afternoon. Huckabee and his band will also perform Saturday night in Concord at a campaign fundraiser.

– CNN Ticker Producer Alexander Mooney