Dave Grohl of the Foo Fighters is part of a new song 'Sing You To Sleep.' The song was co-written by Grohl and singer/songwriter Taylor Greenwood.  

It will be released to benefit Project Night Night, a charity which provides blankets, books, and educational materials for homeless children.

Grohl said regarding Greenwood, "In this day and age where processed production can make anyone America's next big thing, Taylor Greenwood is so refreshing because she is the real deal. A truly amazing vocalist."