What was this? The king of measured middle-age debauchery cleaning up his act?

Performing at the Post-Gazette Pavilion Tuesday night, Jimmy Buffett warned parents who brought their children to the show that he was about to play his raunchy chestnut "Why Don't We Get Drunk (and Screw)." Except Buffett introduced the tune as "Why Don't We Get Lunch (at School)." And sang that revised refrain throughout the song.

Before you worry that Buffett's role as a schoolteacher in the new kids film "Hoot" has turned him tame or that he's undergone some sort of religious conversion, rest assured that the rest of Buffett's show proved he hasn't changed at all.

Even as Buffett hyped "Hoot" by performing the soundtrack song "Floridays" and running a between-set video of the film's "Good Guys Win," he couldn't resist trumpeting what he felt was a subversive musical move. He noted that his cover of "Werewolves of London" is "only in the movie for about 20 seconds," but felt that placing a cover of Warren Zevon's great surreal hit in a film for children proved a triumph of sorts.

Covers of "Werewolves" and John Hiatt's "Window on the World" were hearty and unexpected, the latter turning especially fiery with guest Sonny Landreth's slide guitar work. Much of the rest of the set featured standard fare from a cover of "Southern Cross" to Buffett's best-known songs "Margaritaville," "Come Monday," "Cheeseburger in Paradise," "Volcano" and recent hit "It's Five O'Clock Somewhere." The obligatory "Fins" began the encores.

Per usual, Buffett's set pushed product, too. Posters promoted his Web site and Margaritaville tequila. A video during "Cheeseburger" introduced the singer's Virginia restaurant. And in addition to referencing "Hoot," Buffett noted he should have a new album out this fall. He whetted fans' appetites for it by unveiling the dark talky new tune "Party at the End of the World," which Buffett dedicated to a faithful group of listeners who work in the Antarctic.

Buffett and his Coral Reefer Band worked hard to turn their two hourlong sets into a party soundtrack. Buffett threw "Pittsburgh" and "Western Pennsylvania" into song lyrics numerous times, kicked beach balls back into the seats, cajoled a lawn crowd that had to suffer through a passing rain shower, and showed plenty of video footage shot in the Pavilion parking lot -- including, of course, drunken frolicking and a woman baring her breasts.

On second thought, maybe Buffett hasn't really gone family-friendly at all.