Casey's first AT40 countdown of the year spins us back to 1971, with B.J. Thomas's "Most of All" at 40 and Andy Kim's revival of "Be My Baby" falling to 39. And whoa! "Get Up, Get Into It, Get Involved" at 38. I'd never heard this before -- it's not on any of my JB comps -- and so I didn't realize just how much of a "Sex Machine" retread it is.