During a taped episode of "Monday Night RAW" last night in Los Angeles, Federline made a surprise appearance in the ring and received a chorus of boos from the sold-out crowd at the Staples Center. After an argument between K-Fed and Cena got a little physical, Cena unleashed his signature move -- the F-U slam -- on Mr. PopoZao.
In this clip, K-Fed, sporting his traditional white t-shirt and jeans, makes his way to the ring to a chorus of boos -- and meets John Cena when he gets there. Also, "Jackass" star Steve-O takes a turn in the ring, but things don't go well for him, either.

John Cena, you have acted on the wishes of millions. For that, we salute you.
To see K-Fed get his whoopin', check out the entire incident tonight on "Monday Night RAW" on USA at 9PM ET/PT.










