METALLICA will perform at the 56th annual Grammy Awards — the band's first appearance at the music industry's biggest event in 22 years — alongside renowned Chinese concert pianist Lang Lang. METALLICA guitarist Kirk Hammett revealed to RollingStone.com that the band will play its classic song "One" at the event and that it will be "completely insane."He explained: "Lang Lang has interjected himself into the song in a way I don't think anyone else has ever done in the course of our career. He's going to be playing major parts of the songs. He's going to be playing through the melody." Hammett also revealed that METALLICA has already been working with Lang Lang on a demo of the song and that the collaboration definitely works. "He's going to be weaving in and out of my guitar solos, which is amazing for me," said Hammett. "I've never played with another instrument that's been able to do that so effortlessly." But Hammett was quick to add: "We're keeping all the heavy parts. And it's going to be really cool and it's really dynamic." The soundtrack to METALLICA's recent 3D IMAX movie, "Metallica Through The Never", is nominated for a Grammy for "Best Recording Package." The 56th annual Grammy Awards will take place on Sunday, January 26 at the Los Angeles Staples Center and will be broadcast live at 8:00 p.m. ET on CBS. METALLICA first performed on the Grammy Awards in 1989 — the first metal band to do so as the event included an award for "Best Hard Rock/Metal Performance" for the first time ever. METALLICA performed "One" and was largely favored to win — before losing to JETHRO TULL in one of the most embarrassing and widely ridiculed upsets in Grammy history.