Court hears how late Spirit guitarist Randy California should be given a writing credit on the song
'Led Zeppelin IV' and 'Houses Of The Holy' will be reissued on October 27
Reissue is due for release October 28
Legendary axeman reveals he will be forming his own group at London playback of 'Led Zeppelin IV' and 'Houses Of The Holy' remasters
Singer plays six Led Zeppelin songs including 'Black Dog' and 'Whole Lotta Love' at London Roundhouse
Led Zeppelin placed their entire back catalogue on streaming service in 2013
The album will be released alongside a remastered 'Houses Of The Holy' on October 27
Classic track finishes ahead of AC/DC, Guns N' Roses and Deep Purple
Lead singer reveals that he even offered to write acoustically with band's guitarist
Deluxe editions of 'Led Zeppelin IV' and 'Houses of the Holy' will be released