Stoke City went goal crazy for a spell in the first half here at the bet365.
The breakthrough came for Stoke in only the 11th minute and followed some neat interplay between Tom Ince and Tommy Smith down the Stoke right.
And when the latter dinked one to just beyond the far post there was Powell, with time to think and pick his spot, before heading goalwards and seeing keeper George Long help the ball into the roof of the net.
The fact the goal was scored at the Boothen End – after Hull had swapped ends before kick off – merely added to the sweet moment.
Powell might even have been through for a second pop at goal, this time with his feet, but dallied a split second too long and was dispossessed by a desperately retreating defender.
Not to worry, for Stoke were 2-0 up by the 16th minute after Hull defender Matthew Pennington, for reasons best known to himself, thrust up an arm to handle a right-wing corner.
Campbell lined up the subsequent penalty and his left-foot effort left the keeper helpless.
And 2-0 became 3-0 within two minutes when Campbell went marauding into the Hull area, defenders all over the place, and when the shooting chance eluded him he slipped the ball inside for Clucas.
And the former Hull favourite made no mistake with a clinical effort across the keeper and inside his right-hand post to leave the Boothen End delirious.
It might have been more as all three goalscorers threatened again, but Powell clipped one just wide of keeper and post, Campbell was foiled by the on-rushing keeper and Clucas saw his shot tipped round his near post by George Long.