VIENNA, Va. – By now, the pairing of Robert Plant, he of legendary rock god immortality, and Alison Krauss, she of bluegrass ...

You might not expect a comedy routine during a conversation with Robert Plant and Alison Krauss. But the rock 'n' roll lion ...

Robert Plant has enjoyed great solo success since the 1980s, and recently won five Grammy Awards for the album Raising Sand, in which he collaborated with bluegrass singer Alison Krauss.