Dave Grohl (Foo singer and Nirvana's drummer) is a musical genious, and this album helps prove it. Grohl does rythym guitar, vocals, and drums on this album. there is a variety of styles from driving gruge rock to lighter, popish songs. It's a very good album, my personal favorite. As far as the two swear words, both are screamed and are almost inaudible as far as what he is actually saying, so kids might not even get it. It's an awesome album, that spawned awespme singles and brought Foo to the forfront of rock music. Buy this album.