VIDEO: Tony Winner LaChanze Dedicates 'Amazing Grace' to Her Late Husband at Today's 9/11 Memorial

Broadway's LaChanze, a Tony Award-winner whose husband Calvin Joseph Gooding perished in the September 11, 2001 attacks, performed a stunning a cappella version of "Amazing Grace" during this morning's dedication of the 9/11 Museum in New York City. Check out the moving performance below!

LaChanze currently stars in Broadway's IF/THEN in the role of Kate, an elementary school teacher and new neighbor of Elizabeth, played by Idina Menzel.

LaChanze won the 2006 Tony Award for her performance in the musical The Color Purple. She has also performed on Broadway in Once on This Island (Tony and Drama Desk nominations),Ragtime,Company, and Uptown It's Hot. Off-Broadway, LaChanze received an Obie Award and Drama Desk nomination for her performance in Dessa Rose at Lincoln Center, appeared inThe Vagina Monologues, garnered another Drama Desk nomination for the musical Bubbly Black Girl Sheds Her Chameleon Skin, and starred in the world premiere of Inked Baby at Playwrights Horizons.

Other theater credits include The Wiz, Baby, From the Mississippi Delta, and Spunk. She has been seen on the big screen in The Help (SAG Award, Best Ensemble), Side Effects, Breaking Upwards,Confessions of a Shopaholic, Disney's Hercules,For Love or Money, and Leap of Faith.

On the small screen, LaChanze earned an Emmy Award for Handel's Messiah Rocks and has appeared in Lucy (CBS TV Movie), Law & Order: SVU, Sex and the City, New York Undercover, and The Cosby Show, among others. She has performed in the American Songbook Series for Lincoln Center.