Paul Stanley says re-recording Kiss classics was a challenge

Paul Stanley says that the bonus disc of Kiss re-recording their '70s and '80s hits included on the new Sonic Boom package was both a thrill and a challenge for the band. Sonic Boom, which is sold exclusively at Wal-Mart properties, costs only $12, features the new Sonic Boom album, along with a 2009 DVD concert featuring current members Tommy Thayer and Eric Singer filmed in Buenos Aires, Argentina -- as well as Thayer and Singer joining Gene Simmons and Paul Stanley on the new re-recordings.

Stanley says that returning to the hits in the studio was a surreal experience: [ Click to listen if you have a backstage pass] "That was really a lot of fun. It was kind of like revisiting where you once lived. As much as we thought we were true to the original recordings when we played the songs live, they had developed and changed over the years. We actually studied those songs, sometimes a line at a time, in terms of singing. And they're virtually indistinguishable, except sonically, a little different."