According to press materials, she will perform a "a diverse repertoire of musical theatre and classic pop favorites" in the symphony concert that will begin at 7:30 PM London time.
Here, Menzel attempts to thank her fans and talk about her upcoming London performance when husband Taye Diggs, who performed with her in both Wicked and Rent, interrupts her video.
For more information on the concert, visit www.idinamenzel.com.
To check out what Menzel has to say to her fans, look below: