On the eve of "Appetite For Destruction's" 20th anniversary, we could be one step closer to a full-blown Guns N' Roses reunion. The Key Club in Hollywood hosted a semi-reunion Saturday when ex-drummer Steven Adler's newest band, Adler's Appetite, was joined onstage by former GnR members Duff McKagan (bass) and Izzy Stradlin (guitar) for two "Destruction" tunes, "Mr. Brownstone" and "Paradise City." It was the first time the three have played together live since 1990. Slash was reportedly in attendence, but did not perform with the group. Axl Rose, of course, was a no-show.