Holt knows there will be many Villa fans wondering why manager Paul Lambert has signed a 32-year-old who has struggled to score goals in the npower Championship this season with Wigan.
Holt, however, was a revelation at Norwich during Lambert's time at the helm, notably producing the goods in the top flight when many expected him to flounder.
Holt scored 15 goals in the 2011-12 season, with eight the following campaign after Lambert had departed to Villa.
A surprise £2million move to Wigan followed last summer - and two in four appearances at the start of this season followed before injury and a change of manager halted his scoring.
Despite his last goal being back in August, Holt said: "There are a lot who have seen the move and thought 'what have they (Villa) done that for?'
"That's what a lot of Villa fans are probably feeling, but then there will be some excited by it too. That's football.
"Everyone has an opinion, and it's up to me to prove that opinion wrong.
"I've been quite fortunate that when I'm doubted I know I can turn it around and say 'shove it'.
"I wouldn't have joined Villa if I hadn't have thought that I could do it again in the Premier League.
"It's an opportunity I'm going to take with both hands. I know how difficult it is to get goals, but I believe I can do it.
"I had two seasons, scored 15 the first, eight the second, and I'm confident I can do it again."
Holt is at least delighted to be reunited with Lambert again, adding: "You know what you get with Paul, and he's told me what he expects, which I've taken on board.
"But he's fantastic to work for. I certainly wasn't one of the ones who was pleased when he left Norwich, but now I am delighted to be back with him.
"He just seems to get the best out of me and the best out of his players.
"I've been working with him for the last few days, and he hasn't changed. I know his ways, I know what's coming and I know what he expects.
"As a player, knowing what to expect makes things a lot easier.