The former Norwich forward has been hugely impressive since joining the Championship side.
The 28-year-old has been lethal in front of goal lately, with his strike in the 4-0 mauling of Brentford on Saturday being his tenth goal in his last 10 appearances in the Championship, which represents a drastic change in fortunes for the forward, having taken a considerable amount of time to get off the mark for the Owls.
And his strike partner explained what he believes is behind the dramatic upturn in form.
"Hooper is brilliant," he told the Star. "Gary was like me when I first came to the club.
"He wasn't fit but now he is scoring every game. He is a big player for us and I am so happy for him and the team."
Having made just two substitute appearances for Norwich before joining Carlos Carvalhal's side on loan, it is perhaps not a surprise that Hooper went seven games in all competitions without a goal before he scored in the defeat to MK Dons in December.
However, Carvalhal's faith that the striker would come good was repaid towards the end of his loan spell, as he scored four goals in two games to inspire Wednesday to victories over Bolton and Leeds.
And while some may have feared that he would suffer another barren spell after the pressure of trying to earn a permanent move was released, he has justified the club's decision to keep him, scoring four in his last five games to help the side move into the Championship play-off places.