Led Zeppelin frontmanВ  has been voted the greatest voice in rock by music fans.

The singer beat Queen's Freddie Mercury, Free's Paul Rodgers and Deep Purple's Ian Gillan to the top spot in the poll, organised by Planet Rock.

The Who's Roger Daltrey, Whitesnake's David Coverdale and Guns N' Roses' Axl Rose also featured in the lower reaches of the top ten.

The full top 20 is:

1. Robert Plant (Led Zeppelin)
2. Freddie Mercury (Queen)
3. Paul Rodgers (Free/Bad Company)
4. Ian Gillan (Deep Purple)
5. Roger Daltrey (The Who)
6. David Coverdale (Whitesnake)
7. Axl Rose (Guns N' Roses)
8. Bruce Dickinson (Iron Maiden)
9. Mick Jagger (The Rolling Stones)
10. Bon Scott (AC/DC)
11. David Bowie
12. Jon Bon Jovi (Bon Jovi)
13. Steven Tyler (Aerosmith)
14. Jon Anderson (Yes)
15. Bruce Springsteen
16. Joe Cocker
17. Ozzy Osbourne (Black Sabbath)
18. Bono (U2)
19. Peter Gabriel
20. James Hetfield (Metallica)