Mark your calendars, Blackberries, iPhones, iPads, or just write it on your damn hand -- 'cause now it's officially official: MGMT's second album, Congratulations, will release in the U.S. on April 13.

Phoenix, Jay-Z, Weezer, and the Flaming Lips (who will be performing Pink Floyd's Dark Side of the Moon) will headline Bonnaroo, the Tennessee mega-music fest taking place June 10-13.

Dave Matthews Band, the Avett Brothers, OK Go, Jeff Beck, and 311 are also slated to perform.

Last week, Lil Wayne commanded the spotlight and stage at the 52nd annual Grammy Awards -- but Tuesday, the multi-platinum rapper will find himself in a much less prestigious place: a jail cell at New York City's notorious Riker's Island.

Detroit garage rockers the White Stripes claim the U.S. Air Force re-recorded their hit song "Fell in Love With a Girl" for a commercial aired during this Sunday's Super Bowl, without the band's permission.

Here's a rundown of the albums available online and in record stores today:

[Updated: 3:04 P.M.]

NEWS:

Eight months after Michael Jackson's death last June, the late star's personal physician, Dr.

With the feel-good storyline of the underdog New Orleans Saints winning Sunday night's big game 31-17 and taking a championship home to their once-ravaged city, it was easy to overlook the usual Super Bowl sideshows: the commercials and the halftime extravaganza. Here, we breakdown the best and worst of Super Bowl XLIV's musical moments.

British classic-rock coots the Who played a much-discussed halftime set at the 44th Super Bowl Sunday night, and we've got the Top 10 highlights:

10. Zak Starkey's bull's-eye logo cymbals! You go, Zildjian!

9. Stage set provoked nostalgia for late-'70s computer memory game Simon among key fortysomething CBS demographic.

High On Fire guitarist Matt Pike slings one of the heaviest axes in metal, and shreds faster than ever on his band's fifth studio album, Snakes for the Divine, out February 23. Hear an exclusive stream of the title track below!

Their about-to-be-released album, One Life Stand, might be an ode to enduring love, but Hot Chip's weekend romp through NYC was a quick but brilliant fling: The British dance music specialists slipped into town, devastated audiences, then packed up and move on.

Never underestimate the endurance of Mastodon.

Leave it to Vampire Weekend to transform a fierce ska-punk classic into the soundtrack for a dance party aboard a mega-yacht in St. Barts. Grab your boat shoes.

[Updated: 6:33 P.M.]

NEWS:

Welcome to the new weekly SPIN.com feature "Name That Band!" in which we get the inside stories behind the mysterious monikers of some of our favorite artists. (See past episodes of Name That Band! here.)

This week, Fall Out Boy members discussed the band's uncertain future, Jay Reatard's death was ruled a drug overdose, and Francis Bean Cobain made her musical debut. Meanwhile, Steven Tyler threatened to sue his Aerosmith bandmates, and Lost actress Emilie de Ravin shared what's on her iPod.

Sacramento alt-metal quintet the Deftones will release their sixth studio album this May, capping nearly four years of writing and recording that included a return to the drawing board after sudden tragedy hit the band.

Picking up where they left off last week at the Grammy Awards, the Black Eyed Peas kicked off their world tour at Atlanta's Philips Arena Thursday night, creating an over-the-top electronic-hip-hop-pop-rock'n'roll circus, costarring hometown hero Ludacris and party boys LMFAO.

Any band whose name loosely translates to "Turn it off" either has a keen sense of humor or is hopelessly clueless. Killswitch Engage demonstrated the former Thursday night by kicking off their first headlining show at Boston's House Of Blues with the thumping electronic belches of Yello's "Oh Yeah," the eternal soundtrack to foiling high school principals.