Last fall, when Plant was launching his latest album, "lullaby and...The Ceaseless Roar", the singer said he was interested in working with the former White Stripes leader.

When asked by a fan during a Facebook chat if he would consider recording with White, Plant replied, "I love Jack White's buccaneer spirit, and the way he dodges through the musical horizons. I'd be happy to make a single with him."

"I'd like to do a track called 'Love Me' which was originally recorded by The Phantom," he added at the time. "In fact, I'm going to Nashville on Sunday and can do it on Monday morning! I've got lunch with Alison Krauss at 2pm and cocktails with Patty Griffin at 8pm."

While that schedule didn't work out for the pair, both are on the road supporting their latest projects: Plant with "lullaby.." and White with his second solo release, "Lazaretto."