STAGE TUBE: Idina Menzel Talks Upcoming National Anthem Performance & More on SI NOW

Idina Menzel was featured on today's live episode of SI Now. During the interview, Menzel talked about being a tad nervous about singing the National Anthem before an audience of millions at this year's SUPER BOWL, but noted that the song has always been one of her favorites.

Later she shared her excitement over her upcoming 2015 World Tour in which she will visit cities in Korea, Japan, Ireland, the United Kingdom, the United States, and Canada.

Check out her interview below!

The Tony winner and Broadway superstar will sing the National Anthem and John Legend will sing "America The Beautiful" as part of SUPER BOWL XLIX pregame festivities at University of Phoenix Stadium in Arizona on Sunday, February 1. The performances will be televised live on NBC prior to kickoff.

Menzel rose to prominence when she originated the role of Maureen Johnson 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 performance in Rent. In 2004, she won the Tony Award for Best Leading Actress in a Musical for originating the role of Elphaba in the blockbuster Broadway musicalWicked. She made her return to Broadway in the 2014 musical If/Then. She is currently a nominee for the 2014 Tony Award for Best Leading Actress in a Musical for her performance.

Menzel is also known for her recurring role of Shelby Corcoran on the musical comedy-drama television series Glee, the 2007 Disney movie Enchanted and as Elsa the Snow Queen in the 2013 Disney animated film Frozen, which is the highest-grossing animated film of all time, in which she sang the Academy Award-winning song "Let It Go". The song peaked at number five on the Billboard Hot 100 chart. Solo albums include Barefoot At The Symphony (a live recording of her PBS special by the same name), I Stand, Here, and Still I Can't Be Still.