Hail to the band that only comes to the U.S. once every decade.

OK, they’re here more often than that, but there was a two-year gap between the last time Radiohead came to the Midwest and last Saturday’s show at Wisconsin’s Alpine Valley.

Radiohead opened the show the same way it opened several shows on its latest U.S. tour, with the opening tracks off its latest album, “Hail to the Thief.”

However, “2+2=5” or “Sit Down, Stand Up” didn’t really prove Radiohead’s live performance at Saturday’s show. Instead, Radiohead proved themselves with two new, heavily electronic tracks, “Backdrifts” and “The Gloaming.”

“Backdrifts” began with a deep bass drum played by drummer Phil Selway and bass melody by Colin Greenwood. At first, the audience seemed confused as to which song the band was playing, but once the melody kicked in, it was clear that “Backdrifts” was a live force with which to be contended. It ended with a short, electronic jam; Johnny Greenwood provided the chaotic soundscape with all sorts of interesting toys Radiohead has acquired over the years.

Later in the show, “The Gloaming” proved that while Radiohead began as an average rock band, they have become masters at electronics and synthesizers. As usual, frontman Thom Yorke’s vocals acted like an instrument all night, especially in “You and Whose Army” (from “Amnesiac”), the evening’s first encore. This song happened to be one of the more entertaining of the night (though there wasn’t a moment during the show that Yorke or Greenwood weren’t entertaining) as Yorke, seated at a piano with a camera in his face, made goofy faces at the audience and encouraged them to participate as he sang the lyrics.

“Come on if you think/ You can take us on/ You and whose army?/ You and your cronies.” Then the band joined in for the triumphant conclusion of the song, “We ride, tonight. Ghost Horses.”

“You and Whose Army” was the only “Amnesiac” track played that night. The band dabbled a little bit into “Kid A” with songs like “The National Anthem” and a fantastic version of “Idioteque.”

From the Grammy Award-winning album “OK Computer,” the band played radio hits like “Paranoid Android” and “Karma Police.” The only pre-“OK Computer” songs played were “Just” and “Fake Plastic Trees.”

The final song of the night was “Everything in its Right Place,” and it couldn’t have made a better ending for the show. One by one, beginning with Yorke, the band members left the stage. Once all the band members departed, an electronic loop played over and over with the faint sounds of Yorke’s voice still lingering. The word “Forever” flashed in big letters on the stage. Then it disappeared and the sounds ended; the show was over.

Come back soon, Radiohead – two years is just too long to wait.