The New "Blues Heroes Starring Eric Clapton" issue of the Mojo Classic Collector's Edition features some great references to Brian May!

Page 71 Eric Clapton Interview introductory article.

"In March 2005, just a couple months shy of his 60th birthday, Eric Clapton attended a reception at Buckingham Palace to salute the country's music industry. In the company of Brian May, the Queen guitarist noted for performing live on the roof of the Palace during The Golden Jubilee celebrations, and former Yardbirds Jimmy Page and Jeff Beck, Clapton was formerly inroduced to the Queen (Elizabeth).

Page 77
Color photo of Clapton, Jimmy Page, & Brian May with Queen Elizabeth with caption:
"Royal Blues: Clapton (with Jimmy Page and Brian May) meeting the Queen, March 1, 2005."