By the time U2's 360 tour is complete, the Irish-born rockers expect to gross $700 million.

A little more than $253,000 of that money will go to the Michigan State athletic department.

Bono and company will foot the bill to have the playing surface at Spartan Stadium replaced after playing in front of a sold-out crowd of 65,000 crazed fans Sunday night.

In preparation for the concert, one hundred trucks and 500 crew members assembled a setting that stretched across the stadium's playing surface. Included in the monstrosity was a stage that weighs six times as much as the normal 60-ton stage, a 14,000 square foot video screen, a 164-foot claw-like structure and more than 400 tons of steel.

"I've built a lot of buildings and at the end of the day, they're all just a big ol' chunk of steel," says MSU associate athletic director Greg Ianni. "But you look what they did in terms of lighting and video and choreography and the way everything melded together, that was something else."

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So much so that U2 agreed to pay for a new field.

By 4 a.m. Monday, the band's production crew left the site, leaving behind only the stage. Ianni says that too will be history by Tuesday, allowing for the natural grass surface to be replaced before the Spartans begin summer workouts in August.

Once the aluminum plates covering the field are removed, $253,000 worth of new grass will be trucked in from Colorado. Workers will begin removing the old sod July 5th, and then will re-grade the field two days later before the new grass arrives on the 11th.

Asked how much of a sales job he had to do on Michigan State head football coach Mark Dantonio, Ianni laughed.

"Oh, he trusts us," Ianni says. "You go to him and you tell him everything that's happening and how it's getting replaced and he just says, OK."

Spartan Stadium last hosted a major musical event in 1995 when the Rolling Stones played East Lansing.

Bono even took a moment during the concert to thank MSU President Lou Anna Simon for the invitation to a band without much experience with college life.

"We never made it to university ourselves -- I think Edge made it two weeks and I made it a week," Bono said during the show. "U2 became our university. Rolling Stone became our textbooks."

The concert was held at Spartan Stadium in part because Ford Field in Detroit is a closed venue and Comerica Park isn't suitable for a 360-degree show. (Simmer down, Michigan fans: A.D. Dave Brandon is looking into holding concerts at the renovated Big House.)

Ianni loved the performance, but he's ready to get back to football. Michigan State has seven home football dates this fall, starting Sept. 2 against Youngstown State.

"I'm not sure if or when we will ever see anything like that or who the band will be to do it," Ianni says. "But I think it will be a while before we see anything like that again."