The 32-year-old has long been linked with a move away from the club after asking to be allowed to move back to his native Argentina in January last year.
He has also had a couple of bust ups with Alan Pardew in recent weeks and it was thought he would make is usual six-month appeal to leave the club.
But ... he's done the opposite!
Newcastle refused to let their captain leave as he was tied to the club on a long-term deal. But that didn't stop him trying.
The central defender is expected to be heading to the World Cup finals with Argentina this summer.
When asked if he would stay at United, Coloccini replied: "For sure. I'm going to be here.
"I had personal problems.
"Sometimes it's tough. You have to decide between the problems and the work.
"Sometimes it's too difficult. Now it's finished, and next season I will be here. I'm looking forward to improving.
"We want the best for Newcastle United.
"This season we finished top 10, and maybe we will bring some players (in the summer).
"We will try to do well and finish in the top eight, or something like that. We will always try to improve.
"We understand the fans.
"We know that we didn't do well in the last two or three months.
"We have to accept that and be honest on the pitch. We have to always give the same - 100 per cent like we did (against Cardiff)."