PARIS — Marianne Faithfull is in higher spirits than you might think. “On the whole, I’ve been pretty happy for years,” Faithfull muses over a glass of Coke Zero at the trendy Hôtel Costes in Paris.

It’s the saddest of days for The Voice: Ryan Whyte Maloney, a Team Blake Shelton standout back in Season 6 of NBC’s sing-off, ...