Bob Dylan isn't the likeliest of candidates to put out a Christmas album, but the legendary troubadour has declared to the world that he has 'Christmas in the Heart,' releasing an album of the same name. With everyone from Dylan to David Archuleta getting into the holiday spirit, we at PopEater decided to take a look at some seriously unexpected and downright bizarre holiday albums to help you do the same.

We've all heard about Angelina Jolie's exploits as a United Nations Goodwill Ambassador and Bono's campaigns to combat AIDS and poverty in Africa, but did you know that 'Heroes' star Hayden Panettiere has been fighting to prevent dolphins from being killed in Japan? Or that Jennie Garth is taking on, um, bad breath in Los Angeles? We at PopEater decided to take a look at some of the lesser-known (and often bizarre) causes supported by our favorite celebs.

What could inspire Alicia Silverstone to strip naked in an ad, Natalie Portman to blog passionately and Morrissey to walk off stage at a festival? The answer might surprise you: vegetarianism. Countless actors, rock stars and folks from all walks of life have decided to take meat off the menu and go veggie for an array of reasons as colorful as their personalities.

It seems that everywhere you turn, Jay-Z's ode to New York, 'Empire State of Mind,' is being played at top volume, not just by fans but also by Jay-Z himself. The rap star performed it with Alicia Keys at Game 2 of the World Series at Yankee Stadium last month, and used it to close out the NYC-based MTV Video Music Awards. What's more, Bono introduced him as "the Mayor of New York" when he performed at U2's Berlin Wall concert last week.

Could it be that Jay-Z is angling to displace Frank Sinatra's famous song 'New York, New York' with his own 'Empire' as the anthem of the Big Apple? The rapper has long compared himself to Ol' Blue Eyes and makes some boastful claims in the song, which appears on his latest album 'The Blueprint 3'.

"I'm the new Sinatra," he raps, "and since I made it here I can make it anywhere."

Those synchronized dance moves, color-coordinated outfits, four-part harmonies and emotive solos -- who does them better than boy bands? With the Backstreet Boys (photo, left) in the midst of a "comeback" tour and Robbie Williams' recent announcement that he plans to perform again with Take That (photo, right), we thought it only fitting to find out what their contemporary boy bands have been up to lately, starting with ...