Watch everything from Madonna's tearful tribute to Michael Jackson to Kanye West's explosive crashing of Taylor Swifts award with the full 2009 MTV VMA's On Demand.

The hottest music industry celebs hit the red carpet for exciting pre-show interviews, behind-the-scenes tours, and exclusive inside scoop on the 2009 Video Music Awards.

Beneath all of the glitz and glamour, the VMA's is all about one thing: the music! Watch all of the 2009 VMA performances including memorable performances by Lady GaGa, Green Day, Taylor Swift, Beyonce, Jay-Z, and more!

Many videos were nominated for 2009 VMA Moon Men, but, alas, only a handful of artist took the prize home! Check out all the winners, including music by Beyonce, Lady GaGa, Eminem, T.I., and more.

Watch the premiere of the trailer 'This is It' featuring the final rehearsal footage of Michael Jackson.

Check out this exclusive, expanded version of the 'New Moon' trailer.

MTV Drops presents the first single off of the highly anticipated 'Twilight: New Moon' Soundtrack, Death Cab For Cutie's 'Meet Me On the Equinox.' Pick it up everywhere on Tuesday, October 20, 2009.

The former Cheetah Girl and singer-songwriter gives her report from the red carpet at the 2009 VMAs.

Justin Bieber performs live in this special Summer concert on the 2009 VMA Tour! Watch the crowd go nuts as he performs his hit track 'One Time'!

This extended version of the VMA promos merges the "Tonight" performances of Katy Perry, Taylor Swift and more into one star-packed, spectacular finale!

Watch the videos nominated for the 2009 MTV VMAs 'Video of the Year,' including music from Beyonce, Eminem, Lady Gaga, and more.

Watch the videos nominated for the 2009 MTV VMAs 'Best Female Video,' including music from Katy Perry, Kelly Clarkson, Taylor Swift, and more.

Watch the videos nominated for the 2009 MTV VMAs 'Best Female Video,' including music from Jay-Z, T.I., Kanye West, Eminem, and more.

Watch the videos nominated for the 2009 MTV VMAs 'Best Video (That Should Have Won A Moonman),' including classics from Tom Petty, Beastie Boys, Foo Fighters, Dr. Dre, and more.

Watch the videos nominated for the 2009 MTV VMAs 'Breakthrough Video,' including music from Death Cab For Cutie, Passion Pit, Bat For Lashes, and more.

Watch the videos nominated for the 2009 MTV VMAs 'Best New Artist,' including music from Kid Cudi, Asher Roth, Drake, Lady Gaga, and more.

Watch the videos nominated for the 2009 MTV VMAs 'Best Rock Video,' including music from Kings of Leon, Coldplay, Green Day, and more.

Watch the videos nominated for the 2009 MTV VMAs 'Best Hip Hop Video,' including music from Eminem, Asher Roth, Kanye West, and more.

Watch the videos nominated for the 2009 MTV VMAs 'Best Pop Video,' including music from Lady Gaga, Cobra Starship, Britney Spears, and more.

Watch the videos nominated for the 2009 MTV VMAs 'Best Special Effects,' including music from Kanye West, Eminem, Gnarls Barkley, and more.

Watch the videos nominated for the 2009 MTV VMAs 'Best Direction,' including music from Cobra Starship, Britney Spears, Green Day, and more.

Watch the videos nominated for the 2009 MTV VMAs 'Best Cinematography,' including music from Green Day, Coldplay, Lady Gaga, and more.

Watch the videos nominated for the 2009 MTV VMAs 'Best Editing,' including music from Miley Cyrus, Lady Gaga, Coldplay, Beyonce, and more.

Watch the videos nominated for the 2009 MTV VMAs 'Best Choreography,' including music from Britney Spears, Pussycat Dolls, Ciara, and more.

Watch the videos nominated for the 2009 MTV VMAs 'Best Art Direction,' including music from Coldplay, Gnarls Barkley, Lady Gaga, and more.

From Britney's return to Kanye's stunning performance, watch the entire 2008 MTV VMA's on demand here.

Just because the show is done, doesn't mean the party's over. Go behind the scenes of the 2008 MTV VMA's Post Show.

Go behind the scenes of the 2008 VMA's with AJ as she chats will all of the hottest celebrities on the red carpet.

MTV News welcomes you to the pre-show for the 25th annual VMAs at the Paramount Studios in Hollywood, California.

All week long, we'll show you what goes into putting on an awards show that's also one of the year's biggest parties.

Catch your favorite performances before they make their mark on this year's MTV Video Music Awards.

We hit the jackpot in Vegas! See every insane performance, every celebrity, every award, every freakin' moment of the madness!

Watch the VMA nominated videos that helped define the year 2007, including hits by Rihanna, Justice, Justin Timberlake, Amy Winehouse, and more.

Watch the VMA nominated videos that helped define the year 2006, including hits by Christina Aguilera, Panic at the Disco, Red Hot Chili Peppers, and more.

Watch the VMA nominated videos that helped define the year 2005, including hits by Kanye West, Green Day, Coldplay, Snoop Dogg, Gwen Stefani, and more.

Watch the VMA nominated videos that helped define the year 2004, including hits by Jay-Z, Outkast, Kanye West, Usher, Britney Spears, and more.

Watch the VMA nominated videos that helped define the year 2003, including hits by 50 Cent, Johnny Cash, Missy Elliott, Justin Timberlake, and more.

Watch the VMA nominated videos that helped define the year 2002, including hits by the White Stripes, Eminem, Linkin Park, Nas, P.O.D., and more.

Watch the VMA nominated videos that helped define the year 2001, including hits by Christina Aguilera, NSYNC, Eminem, Missy Elliott, and more.

Watch the VMA nominated videos that helped define the year 2000, including hits by Eminem, Red Hot Chili Peppers, Blink-182, Christina Aguilera, and more.

Watch the VMA nominated videos that helped define the year 1999, including hits by Limp Bizkit, Eminem, Jay-Z, Britney Spears, Nas, and more.

Watch the VMA nominated videos that helped define the year 1998, including hits by Green Day, Foo Fighters, Backstreet Boys, Madonna, and more.

Watch the VMA nominated videos that helped define the year 1997, including hits by Jamiroquai, Notorious B.I.G., Daft Punk, Beck, and more.

Watch the VMA nominated videos that helped define the year 1996, including hits by Radiohead, the Smashing Pumpkins, Tupac, the Fugees, and more.

Watch the VMA nominated videos that helped define the year 1995, including hits by Weezer, Green Day, TLC, Tom Petty, Lucas, and more.

Watch the VMA nominated videos that helped define the year 1994, including hits by Beastie Boys, Nirvana, R.E.M., Green Day, and more.

Watch the VMA nominated videos that helped define the year 1993, including hits by Pearl Jam, Stone Temple Pilots, Dr. Dre, En Vogue, and more.

Watch the VMA nominated videos that helped define the year 1992, including hits by Nirvana, Red Hot Chili Peppers, Van Halen, Guns N' Roses, and more.

Watch the VMA nominated videos that helped define the year 1991, including hits by R.E.M, C+C Music Factory, LL Cool J, Chris Isaak, and more.

Watch the VMA nominated videos that helped define the year 1990, including hits by Aerosmith, Sinead O'Connor, Madonna, M.C. Hammer, and more.

Watch the VMA nominated videos that helped define the year 1989, including hits by Neil Young, Fine Young Cannibals, Madonna, and more.

Watch the VMA nominated videos that helped define the year 1988, including hits by INXS, Bruce Springsteen, U2, Guns N' Roses, and more.

Watch the hit VMA nominated videos that helped define the year 1987, including music by Peter Gabriel, Genesis, U2, Madonna, and more.

Watch the hit VMA nominated videos that helped define the year 1986, including music by Dire Straits, a-ha, Canada's own Bryan Adams, and more.

Watch the hit videos that helped define the year 1985, including music by Tom Petty, Don Henley, David Lee Roth, and more.

Watch the hit videos that helped define the year 1984, including music by Michael Jackson, Cyndi Lauper, the Cars, and more.