Idina Menzel was spotted spending time at the season 16 finale of America's Got Talent in Hollywood on Wednesday.The 50-year-old singer was first seen posing for a few solo pictures before she was joined by current contestant Jimmie Herrod, as well as the a cappella group Pentatonix.She later joined the former and the Northwell Health Nurse Choir on stage for a performance of the track Defying Gravity, which she originally performed in the stage musical Wicked.