A Great Big World and Christina Aguilera jump into the top five with “Say Something,” just above Sam Smith’s debut of “Latch (Acoustic)” at #5. Lady Gaga also moves into the top ten with “Gypsy.” Smith and A Great Big World each score additional debuts in the top thirty; other leading debuts come from Clean Bandit featuring Jess Glynne, the Arctic Monkeys, and Zedd featuring Matthew Koma and Miriam Bryant.