22. "22" (2012)
Approximately 22,000 times more fun than actually being 22. The best song about turning the double deuce since Neil Young's "Powderfinger," if not the Stratford 4's "Telephone," it's also her first shameless disco trip, with that Nile Rodgers-style guitar flash. But the power move is that "uh oh" into the chorus – the oldest trick in the book, except she makes it sound brand new every time.
Best line: "This place is too crowded, too
many cool kids."