"Good to Be Bad", Whitesnake's tenth studio album, was released on 18 April 2008 in Germany, 21 April in the rest of Europe, and on 22 April in North America. Produced by Coverdale, Aldrich and Michael McIntyre, the record reached number seven on the UK Albums Chart and charted in 17 additional countries. In the US, it only reached number 62 on the "Billboard" 200, but it did peak at number eight on the Top Independent Albums chart. Since its release, "Good to Be Bad" has sold over 700,000 copies worldwide. Writing for IGN, Jim Kaz gave the album a favourable review, in which he stated: "A few faux-pa's aside "Good to Be Bad" has enough shining, mega-rock moments to endear itself to fans old and new." It later received the Classic Rock Award for "Album of the Year". The record was preceded by several shows in Australia and New Zealand, after which Whitesnake toured South America, followed by a UK co-headlining tour with Def Leppard. They also played select shows together in Central Europe. In October, Whitesnake teamed up with Def Leppard again for two co-headlining shows in Japan. The following November, Whitesnake played several shows in Germany with Alice Cooper. The band also performed in Israel and Cyprus. Following several European festival dates, Whitesnake embarked on a US co-headlining tour with Judas Priest in July 2009. However, on 11 August, Whitesnake were forced to cut their concert in Denver short, after Coverdale experienced severe pain in his vocal cords. After consulting a specialist, he was revealed to be suffering from severe vocal fold edema and a left vocal fold vascular lesion. As a result, Whitesnake canceled their remaining tour dates.