On 1 July 2007, Brightman appeared at the Concert for Diana held at Wembley Stadium, London, an event organised to celebrate the life of Princess Diana of Wales, where she sang "All I Ask of You" from "The Phantom of the Opera" with Josh Groban. Around 15 million people across the UK watched "Concert for Diana" at home, and it was broadcast to over 500 million homes in 140 countries. On 7 July 2007 Brightman performed four songs ("Nessun Dorma", "La Luna", "Nella Fantasia" and "Time to Say Goodbye") at the Live Earth Concert Series, and debuted her single "Running" at the 2007 IAAF Championships in Osaka, Japan. In this period Brightman also recorded a duet with Anne Murray singing "Snowbird", which was included on Murray's 2007 album "".