The Blues gatecrashed the party at St James' Park, where Magpies legend Shearer was taking charge for the first match of his eight-game tenure, with a hard-fought 2-0 victory.
Frank Lampard and Florent Malouda netted in the second half to wrap up the win, which moved Chelsea one point behind leaders Manchester United, who host Aston Villa on Sunday.
And Hiddink - who, like Shearer, is in his job until the end of the season - was pleased with the attitude of his squad.
Energy"We knew beforehand that the arrival of Alan Shearer would give a lot of energy, not just to the team but also to the crowd," the Dutchman told Sky Sports.
"And I think the boys handled it very well. We knew that if we played a decent and fast game, the opposition would get fatigued and we could strike."
He added regarding the race for silverware: "It is good. As long as we can reach it, we will fight for it."
And Hiddink also had special praise for the impressive Lampard, who ran the midfield after the interval.
"You know with Frank that he is very important for Chelsea, not only for his work-rate but also for being effective," he concluded.