The midfielder was speaking from the club's North American tour.
The Toon Army have had to endure a tough time of it over the last few years and ex-Sunderland midfielder Jack Colback feels it’s time the players gave them something to shout about, according to an interview in the Chronicle.
The Magpies' following in America has confirmed the club’s stature as far as the 25-year old is concerned and he is determined to reward their loyalty.
"It has been a real eye-opener since I have been here. You don’t realise the size of the club and the fanbase it has,” Colback said, in quotes published by the Chronicle Live.
“It is tremendous and we now must start giving something back.”
The tenacious midfielder arrived from bitter rivals Sunderland last summer on a free transfer, becoming the first player since Lionel Perez in 1998 to make a direct switch, and has been an ever-present since.
His impressive Sunderland form was transferred to Tyneside and he proved to be one of the few shining lights in a dark year for Newcastle.
“It was a good moment to captain the team, even in a friendly. It’s a great honour to wear it any game,” said Colback.
“It was a surprise but I am very happy to have it on.”
Colback may have only been borrowing the armband but few could doubt his suitability for a captain’s role.
Coloccini has been a stalwart at the back for the Magpies, yet Colback is the engine that drives the team and no one leads by a better example on the pitch, than the lifelong Newcastle fan.
Fans will be hoping his determined words prove true next season as all the signs begin to point towards a lifting of the gloom on Tyneside.