The Swans completed an historic first Premier League campaign with victory over Liverpool in front of a record Liberty crowd to claim an 11th-placed finish.
Danny Graham scored the only goal in the 86th minute in front of 20,605 to cap off one of the club's best seasons.
With the 100-year celebrations set to get underway, the Jack Army were in celebratory mood following a remarkable season, and this victory put the icing on the cake for Brendan Rodgers and Co.
Graham's 14th goal of the season - his 12th in the league and 100th career goal - was the difference as he struck Angel Rangel's cutback into the corner of the net.
Following the final whistle the squad's lap of honour was superbly marked with the Liberty rocking once again to aptly pull the curtains down on a remarkable campaign.
The Swans made one change to the starting XI.
Leon Britton returned to midfield in place of Mark Gower, who was on the bench following his starting role against Manchester United last time out.
Also on the bench was young winger Gwion Edwards, who signed a three-year contract recently.
Liverpool were without keeper Jose Reina with Alexander Doni making only his fourth appearance this season between the sticks.
Kenny Dalglish was also without Martin Skrtel and Steven Gerrard while up front the visitors boasted the pairing of Andy Carroll and Luis Suarez.
Swans: Michel Vorm, Angel Rangel, Steven Caulker, Ashley Williams (capt), Neil Taylor, Leon Britton, Joe Allen, Gylfi Sigurdsson (Mark Gower, 90), Nathan Dyer (Wayne Routledge, 79), Scott Sinclair, Danny Graham.
Subs: Gerhard Tremmel, Alan Tate, Garry Monk, Gwion Edwards, Luke Moore.
Liverpool: Alexander Doni, Glen Johnson, Daniel Agger, Luis Suarez, Andy Carroll, Maxi Rodriguez (Dirk Kuyt, 73), Jordan Henderson, Stewart Downing (Craig Bellamy, 62), Jonjo Shelvey, Martin Kelly, Jamie Carragher (capt).
Subs: Brad Jones, Jose Enrique, Sebastien Coates, Jay Spearing, Raheem Sterling.
The Liberty was rocking for this final game, with the Jack Army responding to Brendan's request of turning up in Elvis costumes to signal the achievement of proving the critics wrong and retaining the club's Premier League status.
On a glorious day, Ashley Williams led the team out with his son Raphael and little Harry Kieft, the two-year-old from Swansea who has fought against illness to walk again.
The fans continued to sing away, and at kick-off the atmosphere raised a notch yet again.
It was the Swans who carved open the first chance after nine minutes, Joe Allen stealing possession off Jonjo Shelvey and racing into the box and crossing low for Danny Graham, but the striker just couldn't manage to make contact three yards out.
Then, after the Swans were awarded an indirect free-kick after Alexsander Doni picked up Andy Carroll's passback, Scott Sinclair saw his effort blocked by the Liverpool wall.
Gylfi Sigurdsson then went close as he got onto the end of Allen's low corner, but Maxi was there to clear off the line as the Swans upped the pressure.
Sigurdsson was probing again, and his low curling free-kick 20-yards out was only kept out by a superb one-handed save from Doni.
Liverpool replied with a half-chance as Carroll dragged his effort wide after Martin Kelly robbed Britton of possession 25 yards out before the Swans hit back with Neil Taylor's curling right-footed shot saved by Doni.
Carroll fired high and wide after Maxi intercepted from Sigurdsson, but the Icelandic international's touch to Dyer soon after sent the winger in on goal. He opted to shoot rather than square to Graham, who was closely marked by Daniel Agger, and Doni had to get down low to block his powerful attempt.
Half-time: Swans 0 Liverpool 0
Liverpool created the opening chance of the half, with Carroll's overhead kick excellently palmed wide by Vorm after 55 minutes.
Scott Sinclair then fired over after a neat one-two with Ashley Williams before the visitors made a change with Craig Bellamy replacing Stuewart Downing.
Then, from two successive corners, Angel Rangel saw his poked effort nudged wide before Steven Caulker headed over.
Sub Bellamy then headed straight at Vorm while the keeper was in action again to deny Carroll's low drive.
Then, for the remaining 12 minutes, Wayne Routledge came on in place of Dyer for the Swans' first change.
With clock ticking towards the final four minutes, the Swans finally struck.
Sinclair picked out Angel Rangel down the right, and the Spaniard's cutback found Graham, who fired into the corner for his 14th goal of the season - his 100th career goal.
That proved to be the final say in what proved a remarkable afternoon of Premier League football.
On the day when Manchester City lifted the Premier League title for the first time, the Swans finished their first Premier League campaign in 11th spot - joint tenth with West Brom.