If it's adjacent to you, yes.
It just targets "a creature of your choice adjacent to you". If it was intended to exclude the triggering foe it would say, "another creature of your choice adjacent to you" (or, as mentioned by doppelgreener below, "an enemy... other than the attacker"). I would imagine that the power was deliberately written to include the triggering foe so that it could be used when only a single foe was attacking you in melee.