Sabrina Carpenter and Chappell Roan Saw a Gap in Pop, and Filled It

Two pure pop songs, “Espresso” and “Good Luck, Babe!,” may give the aspiring stars behind them a boost from music’s middle class to the big time.

​Two pure pop songs, “Espresso” and “Good Luck, Babe!,” may give the aspiring stars behind them a boost from music’s middle class to the big time.