 Complete the following phrase:  Led by the successful single Whats the Frequency, Kenneth?, Monster debuted at number one in the United States and at least seven other countries, and received generally positive reviews. Four more singles were released from the album, including the UK top-20 hits Bang and Blame, Strange Currencies, and Tongue. That year, the band promoted the album with their first concert tour since 1989; although the tour was commercially successful, band members suffered several health problems. At the 