This is a list of Richard Marx's session work playing various instruments and singing backing vocals for various artists.
Lionel Richie - Lionel Richie Lionel Richie - Can't Slow Down George Benson - 20/20 Chicago - Chicago 17 Julio Iglesias - 1100 Bel Air Place Fee Waybill - Read My Lips Peabo Bryson - Straight from the Heart Whitney Houston - Whitney Houston Madonna - True Blue Barbra Streisand - One Voice Vixen - Vixen Michael Bolton - Soul Provider Billy Joel - Storm Front Tim Feehan - Full Contact John Farnham - Then Again Michael Bolton - Greatest Hits (1985–1995) Amy Sky - Cool Rain Fee Waybill - Don't Be Scared By These Hands Sarah Brightman - Eden Barbra Streisand - A Love Like Ours Natalie Cole - Greatest Hits-Volume 1 Barry Mann - Soul and Inspiration Kenny Rogers - There You Go Again Natalie Cole - Love Songs Josh Groban - Josh Groban Michael Bolton - Only a Woman Like You Chris Botti - December Marie Sisters - Marie Sisters Olivia Newton-John - 2 Barbra Streisand - Duets Chicago - The Box Billy Ray Cyrus - The Other Side Kenny Loggins - It's About Time Kristy Starling - Kristy Starling Luther Vandross - Dance with My Father Sissel - My Heart Disney's Happiest Celebration on Earth: 50 Years Sister Hazel - Absolutely Luther Vandross - The Ultimate Luther Vandross Kenny Loggins - How About Now New Music from an Old Friend George Canyon - What I Do Katherine Jenkins - Believe Red - Innocence & Instinct Vertical Horizon - Burning the Days Ringo Starr - Y Not Rhonda Vincent - Taken Heart Vertical Horizon - Echoes from the Underground Heart - Home for the Holidays Ringo Starr - Postcards from Paradise Vertical Horizon - The Lost Mile Matt Nathanson - Postcards (from Chicago) Fee Waybill - Rides Again