Constantine Maroulis will be the featured guest on the USA's, ''Tonight Show''(hosted by Jay Leno), on September 30, which airs on the USA's NBC TV Network at 11:30 pm EST. Plans are in the works that Constantine will be performing ''Bohemian Rhapsody'' and will be backed up by 11 cast members of the ''We Will Rock You'' Las Vegas musical stage show which is set to the music of Queen.

Source:
http://www.interbridge.com/lineups.html#TS