SS501 photo got mixed up with THSK in a newspaper

Recently issued Japanese weekly (gossip) magazine featured TVXQ,
but included SS501's photo among them by mistake.
We thought TVXQ is pretty known now in Japanese music industry,
but looking at this kind of mistake makes us wonder.....
But surely it must have contributed to the sales of magazine
'cuz it's probably sold to both TVXQ fans and SS501 fans.
Was it done on purpose?

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[my comment for this issue...hmm..i think they did it on purpose..
putting SS501 in a THSK page...'coz why would they sell the paper w/out checking every detail in it..like those pictures..its so easy to determine if its THSK or not...^^]