OK this one's more of a funny, not destructive Guns N' Roses moment, but it did result in the website for a major soft drink company crashing.

In March 2008, Dr. Pepper issued a public challenge to Axl Rose, stating that they would give a free can of soda to everyone in the country -- except ex-GN'R members Slash and Buckethead -- if the band's long-delayed album 'Chinese Democracy' came out that year. When the album did in fact arrive later that fall, the company was unable to keep up with demand, resulting in a downed website, frustrated customers and even the threat of a lawsuit.  Oh, and tons of publicity, which... was obviously the whole point.