Heres some news from the official site:
Ian and the boys (Martin Barre, John O'Hara, David Goodier, James Duncan)and guest readers will be performing a very special benefit concert December 22nd, 19:00-21:00, at historic St. Bride's Church on London's Fleet Street. All proceeds will go to local homeless charities. Doors open at 18:15.
This is a Carol Service featuring Jethro Tull, NOT a rock concert. Jethro Tull will perform seven or eight songs, and there will be guest readers and choral performances. This is a chance to see Tull in a truly unique setting whilst helping a very worthy cause.
Tickets
Tickets are available online only via the Tull fan magazine "A New Day" for £25. Please note tickets are very limited (150 seats) and subject to availability.
Tickets will NOT be posted, but sent by email individually numbered with ticket holders name printed on them. Please ensure when ordering you type your name in the COMMENTS section on the order form. If ordering more than one ticket please list ALL names of ticket holders for checking on the door. You will receive an automated confirmation email of your ticket purchase but of course if tickets are all sold your card will not be charged and the ticket site will notify you within 24 hours.