BETTY WHO A popular viral video leads to a major-label debut for a dance-pop diva Even if you don’t recognize her name, you’d likely recognize Betty Who’s breakout hit “Somebody Loves You,” which played as the backdrop of a 2013 viral video of a man proposing to his boyfriend in Home Depot while dancing with a flash mob. “Even today, people are falling in love with that song for the first time,” says the Australian singer-songwriter...