Grohl: Today's music landscape much like pre-Nirvana era

Dave Grohl says today's musical climate is just like 1991, when Nirvana broke into the mainstream.

The Foo Fighters frontman acknowledges guitar bands are now "overlooked", but isn't worried rock 'n' roll has had its day, as he sees parallels between 2012 and the time just before his former band hailed in grunge and revolutionised US rock music.