Joey performed the song "Let Us Love In Peace" for the "The Perfect Year: The Music of Andrew Lloyd Webber" S.T.A.G.E. Benefit in 2004. The song will be available in May as a part of 2 Disc CD set of The 20th Annual STAGE Benefit Concert. You can pre-order the CD by going here.
Here is a video of his performance
Update: video has been deleted, does anyone have it saved?