"Thank You" is a song written by Robert Plant and Jimmy Page that was released by English rock band Led Zeppelin on their 1969 album Led Zeppelin II. "Thank You" signalled a deeper involvement in songwriting by singer Robert Plant, being the first Led Zeppelin song that he wrote all the lyrics for. According to various Led Zeppelin biographies, this is also the song that made Jimmy Page realise that Plant could now handle writing the majority of the lyrics for the band's songs. Plant wrote the song as a tribute to his then-wife Maureen. Read more on Last.fm.