1) Probably the most blatant copyright infringement in the music business was Led Zeppelin’s 1969 album, Led Zeppelin II. The song Whole Lotta Love used lyrics from blues pioneer Willie Dixon's You Need Love/Woman You Need Love. Also, the prelude to Bring it on Home is a cover of Sonny Boy Williamson's song, but also has similarities to Dixon’s Bring it on Back. The band was sued over both incidents, and later pressings of the album gave Dixon the credit he deserved.

Finally, The Lemon Song used Howlin' Wolf's original Killing Floor, without permission or proper credit. This situation was also rectified in court, and on subsequent releases of Led Zeppelin II...

As Jimmy Page put it, “...Robert was supposed to change the lyrics, and he didn't always do that - which is what brought on most of the grief. They couldn't get us on the guitar parts of the music, but they nailed us on the lyrics.”

2) The most famous case has to be George Harrison’s My Sweet Lord. Shortly after it’s release in 1971, similarities to The Chiffons' hit, He's So Fine, got the former Beatle into trouble. The two songs differ in subject, tempo and style, but the notes ARE very similar. In the ensuing court case, a judge ruled that Harrison unintentionally copied the earlier song.

The Chiffons would later record My Sweet Lord, legally, and George Harrison bought the rights to He’s So Fine. Huh?

3) Now for the most bizarre: John Fogerty fronted the late 60s rock band, Creedence Clearwater Revival. Being more-or-less the heart and soul of the band, he decided to move on with a solo career. He signed over rights to his earlier C.C.R. songs to Fantasy Records, and was free to record with Warner Bros. However, when Fogerty recorded Old Man Down the Road, his old record company claimed it was too similar to an older song, Run Through the Jungle.... yes, he was accused of plagiarizing himself!