Association of America, for selling over 7 million copies in the United States. Californication also saw significant commercial success outside of the United States. For example, in England, the album peaked at number 5 on the UK Albums Chart, and stayed on the chart for 169 weeks. It was eventually certified 4× Platinum by the British Phonographic Industry for selling 1.2 million copies in England. Other notable peaks include reaching number 1 on the Australian, Finnish, Italian, New Zealand, Norwegian, and Swedish charts. As of 2019, Californication is the best selling Red Hot Chili Peppers album, with sales of over 15 million copies worldwide. A large part of Californication commercial success can be attributed to the popularity of its singles. The three most popular singles were "Californication", "Otherside", and "Scar Tissue". William Goodman of Billboard wrote: "You couldn't exist in American pop culture without hearing its singles." "Scar Tissue" was the lead single, and in the accompanying music video, the four band members ride in a convertible through Joshua Tree National Park. "Scar Tissue" spent 16 weeks atop the Mainstream Rock chart in the United States, and peaked at number 9 on the Billboard Hot 100. Additionally, the song was added to the rotation of all 91 modern rock radio stations in the United States, the first song to accomplish the feat since "Discothèque" by U2. "Californication" and "Otherside" also saw significant radio play, peaking at number 69 and 14 on the Billboard Hot 100 respectively. Californication Tour Immediately following the release of Californication, the band embarked on a world tour to support the record, beginning in the United States. To culminate the United States leg of their tour, the Red Hot Chili Peppers were asked to close Woodstock '99, which became infamous for the resulting violence. The band was informed minutes before arriving that the crowds and bonfires in the fields had gone out of control. When the Red Hot Chili Peppers performed a cover of "Fire" by the Jimi Hendrix Experience to finish their set, the disruption escalated into violence when several women, who had been crowd surfing and moshing, were raped and nearby property was looted and destroyed. The Washington Post reported that the decision to perform "Fire" was already scheduled prior to the festival, and was not in response to the ongoing fires. When asked about the event, Smith said: "[The fire] literally looked like a