The "Tommy" tour included shows in European opera houses and saw the Who become the first rock act to play at the Metropolitan Opera House in New York City. In March the Who released the UK top 20 hit "The Seeker", continuing a theme of issuing singles separate to albums. Townshend wrote the song to commemorate the common man, as a contrast to the themes on "Tommy". The tour included their second appearance at the Isle of Wight Festival. A record attendance in England which the "Guinness Book of Records" estimated at between 600,000 and 700,000 people, the Who began their set at 2:00 A.M. on Sunday 30 August.