Definition: In this task you will be given a passage and a yes/no question based on the passage. You should answer the question using the information from the passage.
Input: passage: Artists shall perform live on stage, accompanied by a recorded backing-track which contains no vocals of any kind or any vocal imitations aiming at replacing or assiting the live/original voice of the Contestant(s). The Host Broadcaster shall verify respect for this rule.
 question: do you have to sing live at eurovision?

Yes