Andy Rooney has a handle on music legends like Ella Fitzgerald as well as younger stars nearing retirement age, but bring up singin' whippersnappers like Justin Bieber and Lady Gaga, and his 91-year-old head gets filled with confused crickets.

The '60 Minutes' writer-humorist began his weekly rant on Sunday innocently enough, with an observation that as a "dead center, average American," he should be able to understand and follow the musical trends of the day. He's "heard of Sting and the Rolling Stones," but after perusing a Billboard magazine recently, his eyes were met with a slew of unfamiliar names on the best-seller list.

"The singers I know have been replaced by Justin Bieber, Lady Gaga and Usher," he lamented, adding, "I mean, who?" for good measure.