As the U.S. Women’s Open nears, it’s more than emerging superstar Rose Zhang: Golfers in their 20s hold 19 of the top 20 spots in the world rankings.

The Ying Yang Twins rose to popularity in the early aughts (the decade from 2000 to 2009) with the singles "Salt Shaker" and "Whistle While You Twurk." They also collaborated with Lil Jon on "Get ...