David Lei Brandt

The Eurovision Song Contest is an international song competition, organised annually by the European Broadcasting Union (EBU) and featuring participants representing primarily European countries. Each participating country submits an original song to be performed on live television and radio, transmitted to national broadcasters via the EBU's Eurovision and Euroradio networks, with competing countries then casting votes for the other countries' songs to determine the winner.

Lady Gaga opens the iTunes Festival with an hour-long performance of music from her upcoming album ARTPOP. Surrounded by her Little Monsters in London's celebrated Roundhouse, Lady Gaga performs seven new songs, including her hit single "Applause."