Star is being sued by former security guard Jeffrey Wenninger
Jeffrey Wenninger worked for the singer up to September 2014
The two previously expressed a mutual admiration for each other’s music
The Radical Eye exhibition opens in November
Singer previously criticised Madonna for miming
John urges band to make a blues album
The legend hopes to team up with frontman Brandon Flowers in Las Vegas
Singer releases new album 'Wonderful Crazy Night' today
Gaga is rumoured to be releasing fourth album in 2016
Star also speaks of his admiration for James Blake, John Grant and Young Thug