We figured Pete Wentz and company had a crush on Michael Jackson when last year's post-emo blockbuster "Infinity on High" opened with a song called "Thriller" and surprised with clever shots of soul and R&B. Fall Out Boy's cover of "Beat It" boasts massive, 3-D guitars that lock in a dark and delicious nü-metal groove. Singer Patrick Stump, who also produced, delivers a flawless vocal, hinting at long teenage hours spent with Jacko, while John Mayer's shredding solo proves a worthy echo of Eddie Van Halen's legendary original take. —Sven Philipp