The awards show, set for Oct. 31, is a multiplatform event celebrating and honoring the artists, innovators and fans of digital music culture. Fans will be able to watch the entire show live on OMusicAwards.com, as well as select performances across MTV Music Group websites (MTV.com, VH1.com, CMT.com, LogoTV.com and MTVHive.com). In addition, there will be integration in television, mobile and tablets.
Thanks to her supporters in Taylor Nation, Swift is nominated in the Fan Army FTW category which also includes Bieber, Tokio Hotel, Lady Gaga, Adam Lambert, Insane Clown Posse, Iron Maiden, Demi Lovato, Nicki Minaj and Lil Wayne.
Between his reputation for off-the-wall tweets and his involvement with the TV talent competition series, The Voice, Shelton is nominated for Must-Follow Artist on Twitter. The field also includes Lady Gaga, Mark Hoppus, Snoop Dogg and Cher.
Parton is nominated for Best Vintage Viral Video for her performance of "Jolene" on That Good Ole Nashville Music, a syndicated country music television show that ran in the 1970s and 1980s. Also nominated are vintage video clips from Metallica, Sinead O'Connor, Nirvana and Notorious B.I.G.
The inaugural O Music Awards took place in April. The nominees span multiple musical genres and decades and include a mix of established and up-and-coming artists.
Voting begins Tuesday on the O Music Awards site,
In addition, fans can participate via the O Music Awards Facebook page,