Led Zeppelin - "Thank You" - Song of the Day - (5/2/14)

"Thank You" signalled a deeper involvement in songwriting by singer Robert Plant: it was the first Led Zeppelin song for which he wrote all the lyrics. 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. - WIkipedia