Evening Standard – Hulton Archive, Getty Images Led Zeppelin great John Bonham has long been one of the most revered drummers in rock and roll and for the last couple of years a number of top skinbeaters have gathered for the “Bonzo Bash” to celebrate his musical legacy. The event, which has been held in Los Angeles on the anniversary of Bonham’s birthday in the past, shifted venues this year to take place as part of the NAMM Convention weekend in Anaheim, allowing for more participants to join in. The 2013 Bonzo Bash was held at the Observatory in Anaheim Thursday night (Jan. 24) with a star-studded lineup rocking out for those in attendance. For instance, Adrenaline Mob ‘s Mike Portnoy came out to rock the crowd with the assistance of former Megadeth bassist James Lomenzo on Zeppelin’s ‘How Many More Times.’ Iron Maiden ‘s Nicko McBrain pounded away on a cover of ‘Immigrant Song’ and Slayer ‘s Dave Lombardo provided a more swinging drum sound on Zeppelin’s ‘Down by the Seaside.’ Fan-shot video of all three ‘Bonzo Bash’ performances can be seen below. The evening also featured such top drummers as Steven Adler , Anthrax ‘s Charlie Benante , Testament ‘s Gene Hoglan, Korn ‘s Ray Luzier, Buckcherry ‘s Xavier Muriel, Jane’s Addiction ‘s Stephen Perkins, Poison ‘s Rikki Rockett and more. In addition, fellow musicians like the previously mentioned Lomenzo, Tesla’s Frank Hannon, Great White ‘s Jack Russell , Black Country Communion’s Derek Sherinian, Mr. Big’s Billy Sheehan, Warrant ‘s Robert Mason, Whitesnake’s Doug Aldrich and S.U.N.’s Sass Jordan also joined in the jam. Watch Mike Portnoy and James Lomenzo at the 2013 Bonzo Bash Watch NIcko McBrain Perform at the 2013 Bonzo Bash Watch Dave Lombardo Perform at the 2013 Bonzo Bash [button href=”http://loudwire.com/alice-in-chains-2013-must-see-rock-concerts/” title=”Next: Check Out 2013’s Must-See Rock Concerts” align=”center”]