"Rock You-Hard Work" was released on the Fat Bottom 7"inch single back in 2007 when Murs and Z-Trip released the collaborative EP, "Fat Bottom". Rock You-Hard Work was not found on the EP but rather only on the 7"inch single. So I guess you could call this song a rare one. Rock You-Hard Work samples Queen's "We Will Rock You". Listen below.
DJ Z-Trip & Murs