Ancient singers had no microphones, which meant audiences were quieter, and bringing a pet howler monkey to a performance was twice as irritating. Hoot and holler all you want with today's GrouponLive deal: for $30, you get one reserved ticket for a seat in tier sections C–T to see Il Volo with special guest Ethan Bortnick at DAR Constitution Hall on Monday, October 24, at 8 p.m. (a $60.70 value after ticketing fees).

The young Italian tenor trio Il Volo impresses audiences with pitch-leaping vocal performances rich in three-part harmonies. Performing renditions of classic Italian songs as well as material penned by contemporary songwriters, the teenage opera singers showcase budding international appeal and the promise of a bright future that consists of crooning crowds and autographing customs slips at airports. Opening act Ethan Bortnick, a 10-year-old piano prodigy known as the youngest entertainer to headline his own concert tour and attempt to purchase a monster truck, starts out the night with original piano compositions as well as recognizable classics.