44. The Wanted, 'Glad You Came'
Naughty boys! Irish-English teen-poppers push at the genre's PG-13 rating with a club-bumper that dares to raise the specter of under age inebriation ("Hand you another drink/Drink it if you can"). The unshakably catchy chorus does its work, as do the blunt 4/4 beats – and the salacious double-entendre in the title.