(Photo: REUTERS/Mario Anzuoni)Paul McCartney (R) performs at the 54th annual Grammy Awards in Los Angeles, California February 12, 2012.

More than 2 billion will watch the 12-12-12 Hurricane Sandy benefit concert at Madison Square Garden in New York on Wednesday night, which will feature some of the biggest names in the music industry.

The concert will look to help plug some of the financial requirements sparked by Hurricane Sandy; with the federal government alone expected to provide $60.4 billion towards the clean up costs caused by the devastating storm.

The 12-12-12 concert sold out a long time ago and tickets are no longer available, and The Robin Hood Foundation has reportedly already raised $30 million to contribute to the New York, New Jersey and Connecticut regions affected.

Every dollar made from ticket sales will go directly toward Hurricane Sandy relief, thanks to the generosity of sponsors, organizers and Robin Hood's board of directors.

The concert will go on for more than four hours, and will see performances from the likes of Bruce Springsteen, Paul McCartney, the Rolling Stones, the Who, Bon Jovi, Eric Clapton, Dave Grohl, Billy Joel, Alicia Keys, Chris Martin, Eddie Vedder, Roger Waters, and Kanye West.

Some reports have even suggested that legendary rockers Nirvana will reunite for the benefit concert, with The Beatles' Sir Paul McCartney filling in for Kurt Cobain.

(Photo: The Christian Post/Vincent Funaro)This image shows cars that were piled on top of each other during the wave that ravaged Staten Island with Hurricane Sandy. The picture was taken in the Fox Beach area of Staten Island.

The concert will not only be about the music, however, and there are a string of actors and comedians set to take part in one way or another.

Some of those also being touted as on the bill for tonight include Billy Crystal, Jon Stewart, Leonardo DiCaprio, Kristen Stewart, Chris Rock, Susan Sarandon, Adam Sandler, Jake Gyllenhaal, Jimmy Fallon, Steve Buscemi, Quentin Tarantino, Seth Meyers, and Season Combs.

The concert will start at 7.30 p.m. ET and will be live streamed on nearly 30 websites, including YouTube, MTV.com, Hulu and Myspace. Thirty-four TV channels will also be showing the concert.

Numerous movie theaters have also said they will be showing the concert on big screens for fans too.

The location-based social network Foursquare has also announced that it is offering a single-day badge (a "Be Robin Hood" badge), which can be unlocked by checking in anywhere in the world with the hashtag #121212concert. The first 25,000 checkins will trigger $10 donations from Samsung Galaxy, up to $250,000.

The concert can be watched online through free live stream below, and all watchers are encouraged to donate by clicking here.