Pete Townshend and Roger Daltrey performed a four-song acoustic set in central London this lunchtime (Feb. 8) at a press conference to mark the announcement of The Who's 2007 European tour.

The itinerary begins May 16 at Lisbon's Atlantico Pavilion, the first of 29 dates extending to July 9, confirmed today by promoters CPI. In addition to the published shows, CPI confirmed that the English rock legends will headline the Sunday night bill on the main stage at the U.K.'s hallowed Glastonbury Festival June 24.

At the gathering at The Hospital venue in Covent Garden, Webcast live at thewhotour.com, the duo performed the classics "Won't Get Fooled Again" and "Behind Blue Eyes" plus "Mike Post Theme" and "Tea & Theatre" from last year's new "Endless Wire" album.

Introducing "Behind Blue Eyes," Townshend explained: "We're doing this because Roger wanted to prove to all you cynical press people that he can still do this."

Commenting on the tour, he said: "What holds Roger and I together is the music, and what we realize is that the audience put us there. When they vote us off, we'll go. There's a lot of great new music out there and one of the things The Who has to do is compete with it."

The tour will play 28 cities in 14 countries, with tickets for some markets on sale from Feb. 12. Every ticket will include a free "virtual ticket" membership to the "Who Tour Club." This service, at thewhotour.com, will be updated throughout the run of shows to give fans an inside view of life on the road, including audio and video streams, downloads, set lists and news.

Asked about potential support acts, Townshend conjectured that he would love to see Australian hard rock band Wolfmother and longtime Liverpool alternative rock outfit Shack on the dates.

The Glastonbury performance, which follows shows at Wembley Arena June 26 and 27, is of particular excitement to Townshend. "It's the coolest thing," he said, "to be able to say to my 17-year-old son 'Yeah, come, bring your mates.'"

He added that he and Daltrey would "regroup" after this tour but that he was sure there would be more U.K. shows in the future. The next Who album, he said, "will come when it comes. I'm writing all the time."

On March 31, The Who will headline the last of this year's six shows for the Teenage Cancer Trust at the Royal Albert Hall. The week of concerts in the regular fundraising series also features the View, Kasabian, Noel Gallagher and the Coral.

Commented Daltrey, who is closely involved with the charity: "The shows sold out really fast, every computer outlet crashed. The business has been so supportive, and I take this opportunity to thank them."