Led Zeppelin’s Robert Plant has revealed the most challenging song he ever had to sing while saying this is not Motörhead’s ‘Ace Of Spades’ during the recent episode of his ‘Digging Deep, The Robert Plant Podcast.’

As you may know, Robert Plant met Alison Krauss back in 2004, and after seeing her perform, Plant was quite interested in working with her. Following that, the pair went into the studio to record an album together in 2006.

In 2007, they released a commercial hit album titled ‘Raising Sand.’ Since its release, the album brought them numerous awards, including six Grammys. Currently, the pair is planning to release a new album as a follow-up to their ‘Raising Sand.’ The album, which will be titled ‘Raise The Roof,’ features several covers and is reported to be released on November 19.

Apart from working on music, Robert Plant is also doing a podcast named ‘Digging Deep, The Robert Plant Podcast.’ During the podcast, PLant talks about his experiences in the music industry, tells interesting stories and comments on some of his songs. On May 24, 2021, the podcast began its fourth season, and Plant shared the sixth episode a month ago.

In the sixth episode, Robert Plant talked about one of his collaborations with Alison Krauss titled ‘Polly Come Home.’ The song is a cover version of Gene Clark’s ‘Polly,’ and according to Plant, it turned out to be the most challenging song he ever had to sing, except his audition for the Yardbirds.

During the podcast, the Led Zeppelin singer claimed that he faced several problems while singing the song. He then said that although ‘Polly Come Home’ is a beautiful song, it was quite challenging to sing at the tempo they chose to sing it. Robert then compared the song to Motörhead’s ‘Ace Of Spades,’ implying that ‘Polly’ was harder to sing.

During the podcast, Robert Plant talked about ‘Polly Come Home’ and said:

“It’s just the most difficult piece of music to sing at the tempo that we sang it at. It’s one of the toughest calls I’ve had, apart from the audition in the Yardbirds. The first crack of any vocal at all on the ‘Raising Sand’ was this song. It’s such a remarkable feel, and it’s such a beautiful song.

You know, the guy’s story is what it is, but the song itself is just, it’s so poignant. And it’s so slow. So the very opening line of the song, in my chest, my lungs, my vocal chords, in my sense of timing… It was, ‘How am I gonna get these words right through to the end of that bar without collapsing?’ It was just such a beautiful lilt.

The music that surrounded me in the headphones, in the vocal booth, that was just… That was my first encounter with hearing what those guys could do. Because when you’re in the room walking around, talking, taking photographs of guitar pedals, that’s that. But when the actual magic box opens up, you got ‘Wow!'”

He went on to say:

“So this is the guy that sang ‘Immigrant Song,’ he’s just gonna go and sing this song here where I need an iron lung to give me a little more air to get the song out. It’s just such a great song, but the tempo… And the way Jay brings the snare down… it was so languid, it was magnificent. But it was a hell of a challenge.

Maybe it was the psyche in me because it was my first, coming all the way to Nashville to walk into sand and pour into sea. All these guys, and I go ‘Wow, geez. This is not ‘Ace Of Spades.’ What am I going to do?'”

You can check out the rest of the podcast and the song ‘Polly Come Home’ right below.