Groff rose to prominence in 2006 for his performance in the lead role of Melchior Gabor in the original Broadway production of "Spring Awakening", for which he received critical acclaim and was nominated for the Tony Award for Best Actor in a Musical. He returned to Broadway in 2015 to play the role of King George III in "Hamilton", a performance for which he earned a nomination for the Tony Award for Best Featured Actor in a Musical. He also appeared on the cast recording, for which he received the Grammy Award for Best Musical Theater Album.