On 11 February 2007, he reunited with Police to open the 2007 Grammy Awards, singing "Roxanne", and announced The Police Reunion Tour, the first concert of which was in Vancouver on 28 May 2007 for 22,000 fans. The Police toured for more than a year, beginning with North America and crossing to Europe, South America, Australia, New Zealand and Japan. Tickets for the British tour sold out within 30 minutes, the band playing two nights at Twickenham Stadium, southwest London on 8 and 9 September 2007. The last concert was at Madison Square Garden on 7 August 2008, during which his three daughters appeared with him. Toronto documentary producer Vanessa Dylyn, who was producing a film called "The Musical Brain", featuring neuroscientist Daniel Levitin, approached Sting about the film. Sting was interested in having his brain scanned while different music was played. "Brand New Day" was the final song of the night for the "Neighborhood Ball", one of ten inaugural balls honouring President Barack Obama on Inauguration Day, 20 January 2009. Sting was joined by Stevie Wonder on harmonica.