JAKE SHIELDS, DAN HENDERSON, ‘KING MO’, GEGARD MOUSASI, GILBERT MELENDEZ, SHINYA AOKI WORK OUT FOR PACKED MEDIA GATHERING WEDNESDAY IN HOLLYWOOD, CALIF. World Championship Tripleheader To Take Place Saturday, April 17, On The CBS Television Network At Bridgestone Arena in Nashville, Tenn. HOLLYWOOD, Calif. (March 17, 2010) – The six fighters who will appear on…