The lineup to Metallica’s Orion Music & More continues to grow. First, it’s been confirmed that none other than Ghost have been added to the lineup, while post-hardcore group Letlive were added to the Damage Inc. Stage. Also added to the bill are comedians/That Metal Show co-hosts Don Jamieson and Jim Florentine.

While all four acts are great additions to the festival, Ghost will probably excite most fans. The Swedish doom rock group have made a huge name for themselves with their debut album Opus Eponymous and live shows. In fact, James Hetfield himself has called Ghost “a breath of fresh air for metal.” Interestingly enough, Orion Music & More has still yet to officially announce the addition of Charred Walls Of The Damned, even though the band have confirmed the news. This makes us believe that there are even more acts left to be added.

Besides music and comedy acts, Orion Music & More have also announced the addition of the Billabong All Out Air Assault Surfing Expedition. This attraction will feature “the World’s Best Aerialists and New Jersey Local rippers taking to the air on the best waves Atlantic City has to offer.” And here we thought a car and motorcycle show was an unusual thing for a music festival. In case you need more convincing, you can watch video of Metallica’s Kirk Hammett and Robert Trujillo explaining the origin of the surfing expedition after the jump.