Jesus Christ Superstar is a decades-old musical (specifically, a rock opera).
The latest iteration of the trend of networks big, star-studded live performances of famous musicals was NBC putting on this show, which depicts the final weeks of Jesus' life, as an Easter special.
While Jesus Christ Superstar is sometimes controversial, particularly for its depiction of Judas as a tragic and even sympathetic character, the musical enjoys a great deal of popularity among both Christian and non-Christian audiences.
For this show, the titular role of Jesus fell to the phenomenal John Legend.
His wife, Chrissy Teigen, has been tweeting about this for weeks. Naturally, she livetweeted the entire show.
As always, her tweets are absolutely golden.