SLAYER drummer Dave Lombardo told MusikUniverse.net that he was the only member of the veteran thrash metal act to take part in the "Big Four" jam in Sofia, Bulgaria because his bandmates "don't do that kind of thing."Many fans were surprised to see that Lombardo was the only musician from SLAYER to perform with members of METALLICA, MEGADETH and ANTHRAX at the end of the June 22 "Big Four" concert broadcast from the Sonisphere festival in Bulgaria. Lombardo explained to MusikUniverse.net: "I'm the only one who knows how to jam and have a good time! The other guys, they don't do that kind of thing. They just know their music when it's written and that's it — they don't know how to go up and improvise and enjoy themselves. Jeff [Hanneman; guitar] does a little bit, but not the other guys [bassist/vocalist Tom Araya and guitarist Kerry King]." During the MusikUniverse.net chat, Lombardo also shot down suggestions that SLAYER has recorded its last album following Araya's recent back surgery which forced the band off the road for a period of several months. "SLAYER's days aren't numbered," Lombardo said. "Everyone goes through certain things. I went through an accident and I needed surgery back in 2004. But I wasn't on tour, so nobody knew about it. These things happen. And you heal and you move forward." He added, "The tours and albums keep coming out — they haven't stopped in over 25 years and I don't think they'll ever stop."