From Queenpedia.com

Don Airey (born 21 June 1948 in Sunderland, England) has been the keyboardist in the rock band Deep Purple since 2002, succeeding Jon Lord. He has had a long and productive career, playing with such acts as Gary Moore, Ozzy Osbourne, Judas Priest, Black Sabbath, Jethro Tull, Whitesnake, Colosseum II, Sinner, Michael Schenker, Uli Jon Roth, Rainbow, Divlje jagode and Living Loud. He has also worked with Andrew Lloyd Webber.

He provided extra keyboards on Resurrection and Nothin' But Blue from Brian's Back To The Light album in 1993.