Your top 5 in order.
My contributions are -
Bee Gees, Bob Dylan, Bob Marley, Cher, Chris de Burgh, Chris Rea, David Bowie, Dire Straits, Eagles, Fleetwood Mac, Icehouse, Jimi Hendrix, John Lennon (not Beatles), Marvin Gaye, Phil Collins, Rolling Stones, Roxy Music, Paul Simon, Pink Floyd, Simply Red, Stevie Wonder, The Alan Parsons Project & Van Morrison.
John Lennon
Bee Gees
Chris de Burgh
Eagles
Pink Floyd