Photo: George ChinEric Clapton's upcoming studio effort, Old Sock, won't hit stores until March 12, but fans can hear a little preview of the album now.  "Gotta Get Over," the lead single from the 12-track collection, was released to radio recently and is streaming now online in its entirety at the official SoundCloud page of the guitar legend's new Bushbranch imprint.

The track is a driving blues-rock number powered by Clapton's gritty voice and tasteful riffs, and complemented by gospel-flavored backing vocals from Chaka Khan.  Two versions of "Gotta Get Over" can be heard online -- the album version and an abridged radio edit.

The tune is one of two new original songs featured on Old Sock, which is made mostly of covers of some of Clapton's all-time favorite songs.  Besides Khan, other guest artists joining Slowhand on the album include Paul McCartney, Steve Winwood and Clapton's frequent songwriting collaborator J.J. Cale.

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