INDIO, CA - APRIL 18:  Musician Troy Sanders of Mastodon performs during day 1 of the Coachella Valley Music & Arts Festival
Michael Buckner

METAL: Three Must-See Bands Tour Together! 
A three-headed metal monster is hitting the road this spring! Mastodon and Opeth have unveiled a 30-date co-headlining tour of North America, kicking off on April 4 in Portland, ME. Mastodon's new LP, The Hunter, is an absolute monster of a metal album, and even hit No. 10 on the Billboard charts. Swedish band Opeth are vets in the genre, playing a unique sound that fuses folk, blues, classic, and even jazz. Fellow Swedes Ghost, who wear dark, hooded robes onstage, will open all dates. Tickets go on sale February 3. [Mastodon]

POST-PUNK: The Raincoats Unveil U.S. Tour Dates
London trio the Raincoats, who were hugely influential on the ‘90s alt-rock movement, especially Kurt Cobain and Sonic Youth, are returning to the U.S. for a string of West Coast shows in March. San Francisco’s Grass Widow will open. “It was the Raincoats I related to most,” SY's Kim Gordon once praised. “They seemed like ordinary people playing extraordinary music. They had enough confidence to be vulnerable and to be themselves without having to take on the mantle of male rock/punk rock aggression…or the typical female as sex symbol avec irony or sensationalism.” [The Raincoats]

COUNTRY: Sugarland Singer Covers Hank Williams
Super Bowl Commercial Teaser Alert! Jennifer Nettles, lead singer for the country band Sugarland, has recorded a version of “Your Cheatin’ Heart,” a classic by the late, great Hank Williams, which will be featured in a 30-second Super Bowl commercial for Pepsi MAX. Talk about a big audience, eh? No word yet if or when the full track will be released. [CMT]

HIP HOP: 2012's Hottest New Rapper Inks With Def Jam
Atlanta rapper 2 Chainz—a former member of the Playaz Circle, who is pegged to be one of the hottest new solo artists in the game this year—has left Ludacris’ label Disturbing Tha Peace, aka DTP, and signed a new solo deal with Def Jam. “It’s not DTP no more. I’m actually behind [Ludacris], he’s still my homie. I just took another route as far as running my own company and bossing up,” 2 Chainz said. “But on the other hand, I’m still working with him. He has an album coming out this year, as well. Matter of fact, we are label mates, now, which is crazy. So, yeah, that’ll be cool. I’m looking forward to that.” [XXL]