Listen to Shania Twain on iHeartRadio | Listen to Florida Georgia Line on iHeartRadio

More country stars have signed on for this weekend's Billboard Music Awards.  Shania Twain, Florida Georgia Line, and Sugarland's Jennifer Nettles are among the newly announced presenters for the event. 

The ceremony will also feature appearances from "Nashville" star Hayden Panettiere and Miley Cyrus, as well as Kid Rock, Cee Lo Green, Celine Dion, and Carly Rae Jepsen.  Actresses Alyssa Milano, Stana Katic, Emmy Rossum, and Jennifer Morrison are on board for the event as well. 

Taylor Swift and The Band Perry are representing country in the performance lineup, which also includes Prince, Christina Aguilera, Chris Brown, Bruno Mars, and others. 

Swift is among the lead nominees heading into the event.  Her 12 bids include the fan-voted Milestone Award.  Voting is still open at 

The 2013 Billboard Music Awards will be presented in a ceremony in Las Vegas, and air on ABC this Sunday at 8:00 p.m. Eastern. 

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