"It's something that hasn't happened often over the years but I'm delighted, " said Ameobi.
Goalkeeper Shay Given returns along with Steven Taylor, Matthew Pattison, Peter Ramage and Shola Ameobi.
"If there is a time to play Chelsea it is now, " Ameobi told BBC Newcastle.
The Brazilian easily converted the resulting penalty but City mistakes let Shola Ameobi equalise before half time.
Nigerian-born Ameobi has made more than 250 appearances for Newcastle, with seven goals in seven games this season.
English outfit Newcastle went through against Metalist Kharkiv after Shola Ameobi's penalty sealed a 1-0 win in Ukraine.
They secured a 2-0 win over promotion rivals Forest after substitute Shola Ameobi scored in the 71st minute.
Ameobi then powered a header wide from a fine Barton cross, before he gave the visitors a two-goal cushion.
Ameobi proved the difference between the two sides soon afterwards, though, latching on to Nolan's pass to turn and shoot beyond Camp.
Newcastle's players cast a glance towards the referee when Ameobi went down under a challenge in the box but no penalty was given.
BBC: SPORT | Football | Other European | Newcastle's Euro dream over
With 10 minutes remaining Kirkland spilled Ameobi's powerful low shot and Owen, inevitably, was on hand to stab home from four yards out.
Ameobi admitted their achievements at this stage have surpassed pre-season expectations, and revealed that finishing the job is now his and his team-mates' priority.
The Magpies lead the division by 10 points going into the Boxing Day trip to Sheffield Wednesday, a lead Ameobi is determined not to give away.
Interim manager Joe Kinnear moved Martins out to the left wing, leaving Ameobi alone upfront where he battled hard to win free-kicks from which Geremi occasionally threatened.
Ameobi, 27, is top scorer with four goals at St James' Park and the forward is revelling in the chance to make the most of his first-team opportunity.
Ameobi curled a shot wide, Barthez had to be on his toes to tip away a Robert effort and the former Manchester United keeper then saved from Shearer.
BBC: SPORT | Football | Other European | Newcastle's Euro dream over
Newcastle were surprisingly lacking any sense of real urgency, and Shearer played his final card with 20 minutes left by sending on Shola Ameobi for the tiring Viduka.
However, at this stage Chelsea were already 3-1 down after Nile Ranger's volley had cancelled out Patrick Van Aanholt's opener before Ryan Taylor and Shola Ameobi put Newcastle in control.
He shot over the bar after substitute Ameobi, on for Carroll who had suffered a knock in the first half, had won a free-kick on the edge of the box.
In the 77th minute, Ameobi got his head to the ball before Shearer but substitute Lee Bowyer failed to make a strong connection and sliced his shot wide of the post.
BBC: SPORT | Football | Other European | Newcastle's Euro dream over
Three minutes after the break, Ameobi was fouled 25 yards from goal and Barton nonchalantly curled the ball over the wall and past Lewis for his first goal since October 2008.
Ameobi was part of the Newcastle side that overcame a Chelsea side in the Carling Cup earlier this season, scoring a brace in the 4-3 win at Stamford Bridge back in September.
Newcastle continued to have chances - Shola Ameobi, Alan Smith and Duff all coming close before the latter sealed his hat-trick in the closing stages with a delightfully curled shot past Lee-Barrett.
Ten minutes after the break referee Andre Marriner sent Boyce off for a second bookable offence (the first was for unsporting behaviour) after he was adjudged to have fouled Ameobi, despite getting the ball.
The centre-back, back in the side after a four-match injury lay-off, failed to control a harmless ball from Shola Ameobi, allowing the pacy Duff to pounce and slot past Scott Carson from 10 yards.
Leon Best passed into Ameobi's feet on the edge of the area and he turned away from his marker before firing a low shot which Lewis got a hand to but could not keep out.
The visitors threatened when Shola Ameobi laid the ball off to Alan Shearer but after he had chested the ball down, Habib Beye blocked the former England captain as he tried to shape up to shoot.
BBC: SPORT | Football | Other European | Newcastle's Euro dream over
Jonas Gutierrez shone for the home side but their first real sight of goal only came after 37 minutes, when Shola Ameobi rose high to meet Damien Duff's cross from the right only to head well over.
And with tallies starting to rise around him, thanks to team-mates such as Peter Lovenkrands, Shola Ameobi and Andy Carroll, the former Bolton man believes the future is bright for the Magpies in the latter part of the campaign.
Martins swung a cross in but, as Dunne cleared, the ball deflected off Vincent Kompany and Ben Haim into the path off Ameobi who chested the ball forward and finished awkwardly for his first goal in over two years.
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