The Irish striker signed a three-year deal with the Bhoys on Tuesday and was over the moon after committing himself to the cause of the Glasgow giants.
"I'm absolutely delighted and I'm just looking forward to the next few seasons. I'm just glad to get it out of the way and I can concentrate on my football," he said.
"I've been happy enough with the way it's gone for me this season. I'd have liked a few more goals by now but that'll come.
"We're unbeaten in the league, we've been doing reasonably well in Europe and we need to get another couple of results now after that big win over Ajax.
"Overall, I've been delighted. I'm enjoying my football and I'm hoping this just helps me kick on."
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