UPDATE: Full Video! Idina Menzel & IF/THEN Audience Members Sing 'Let It Go' for Broadway Cares

During the holiday season, cast members of Broadway's biggest shows collect contributions for Broadway Cares / Equity Fights AIDS, one of the nation's leading industry-based, nonprofit AIDS fundraising and grant-making organizations.

After performances of Broadway's If/Then, Tony Award winner Idina Menzel has promised audience members that she will perform 'Let It Go,' the hit song from Disney's animated feature film 'Frozen,' if $5,000 was collected for the organization.

Below, If/Then cast member Ryann Redmond shares a clip on Instagram of some generous audience members performing the Oscar-winning song with Ms. Menzel!

During last year's fundraising efforts, the RENT star, joined by cast members Anthony Rapp and Tamika Sonja Lawrence lead the cast singing 'Seasons of Love' from RENT, along with audience auction winners. Check it out below, and then scroll on down for the new video of 'Let It Go'!

Broadway Cares/Equity Fights AIDS is one of the nation's leading industry-based, nonprofit AIDS fundraising and grant-making organizations. By drawing upon the talents, resources and generosity of the American theatre community, since 1988 BC/EFA has raised more than $250 million for essential services for people with AIDS and other critical illnesses across the United States. For more on Broadway Cares/Equity Fights AIDS visit: http://www.broadwaycares.org

Menzel's highly-anticipated Christmas album, titled 'Holiday Wishes,' is now available on Warner Bros. Records. The album was produced by Grammy Award-winner Walter Afanasieff (Barbra Streisand,Celine Dion, Mariah Carey) and features such classic favorites as "A Holly Jolly Christmas" and "Have Yourself A Merry Little Christmas," as well asJoni Mitchell's Christmas-themed "River," one of Menzel's favorites.

Menzel rose to prominence when she originated the role of 'Maureen' in the hit Broadway musical RENT, a role which she reprised for the 2005 feature film adaptation of the musical. She received a Tony Award nomination in 1996 for her portrayal. In 2004, she won the Tony Award for Best LeadingActress in a Musical for originating the role of 'Elphaba' in the blockbuster Broadway musical WICKED. Menzel made her return to Broadway in the 2014 musical If/Then and was nominated for a 2014 Tony Award for her performance.

Menzel is also known for her recurring role of 'Shelby Corcoran' on the musical comedy-drama television series GLEE, her part in the 2007 Disney movie ENCHANTED and as THE VOICE of 'Elsa' in the Disney animated film FROZEN, which is the highest-grossing animated film of all time, and in which she sang the Academy Award-winning song "Let It Go."