Brian Wilson says 'Pet Sounds' is the greatest album he has ever produced.

The Beach Boys legend is extremely proud of the band's 11th LP - which contains acclaimed songs such as 'Wouldn't It Be Nice' and 'God Only Knows' - and knows he could never better it.

Writing in his new memoir 'I Am Brian Wilson', he said: ''I love the whole Pet Sounds record. I got a full vision out of it in the studio. After that, I said to myself that I had completed the greatest album I will ever produce.

''I knew it. I thought it was one of the greatest albums ever done. It was a spiritual record. When I was making it, I looked around at the musicians and the singers and I could see their halos.''

Talking to The Sun newspaper, he added: ''I knew it would be a very special album.I just knew it.''

The album was released in 1966 and Brian is currently on a world tour, where he is playing the record in its entirety, as well as other Beach Boys hits such as 'Good Vibrations', 'Barbara Ann' and 'Surfin' USA'.

And the 74-year-old musician - who took or shared lead vocals on many of the album's tracks - is loving being on the road again.

He said: ''It's a thrill to perform 'Pet Sounds' because I love the album and people love the way we make it sound just like the original record.

''The trips are going great. We just went to New Zealand, Australia and Japan and the people in those countries just flip for it. They love it.''