GUNS N' ROSES/SIXX: A.M. guitarist DJ Ashba revealed in a March 31 Facebook posting that he will have to undergo surgery for a nine-millimeter tear in his knee ligament.A photo of Ashba having an MRI (magnetic resonance imaging) scan of his knee can be viewed below. Magnetic resonance imaging (MRI) is a technique that uses a magnetic field and radio waves to create detailed images of the organs and tissues within the body. In addition to Ashba and sole original member Axl Rose (vocals), the current lineup of GUNS N' ROSES includes guitarists Ron Thal and Richard Fortus, bassist Tommy Stinson, keyboardists Dizzy Reed and Chris Pitman and drummer Frank Ferrer. Ashba joined GUNS N' ROSES in March 2009 following the departure of Robin Finck. As previously reported, "Chinese Democracy", the 2008 album released by the current edition of GUNS N' ROSES after a 15-year wait, can now be purchased at BestBuy.com for $1.99. Best Buy was the exclusive U.S. retailer for "Chinese Democracy", reportedly paying $14 million for 1.6 million copies. But the album was a major sales disappointment, moving just 614,000 copies despite the curiosity and hype surrounding its release.