The Vegas Golden Knights celebrated their first Stanley Cup victory with a memorable parade down the Las Vegas Strip. Fans packed the streets to commemorate the franchise's historic win, just six years after its inception. While the entire team was clearly enjoying the festivities, one player, William Karlsson, seemed to be having an especially good time.

Karlsson, an original Golden Knight drafted during the NHL’s expansion, delivered a speech, and a performance, that quickly went viral. From slipping on the steps (with a beverage in hand) while being introduced, to a shirtless, expletive-laden speech, Karlsson embraced the celebratory atmosphere of Sin City.

His unscripted remarks included a "Go Knights Go!" chant, praise for teammate and Conn Smythe winner Jonathan Marchessault, and a seemingly random jab at the Arizona Coyotes. He recounted their first game against Arizona, highlighting his lack of points while simultaneously boasting about his overall performance that year.

After finally ceding the microphone to Marchessault, Karlsson wasn't done. When ABBA’s "Dancing Queen" began to play, the Swedish-born player climbed atop a speaker to sing along with the crowd, having just taken a celebratory sip from the Stanley Cup itself.

Karlsson's playoff performance was impressive, with 17 points (11 goals and 6 assists) across 22 games. He also had a strong regular season, totaling 53 points. His exuberant celebration certainly capped off a successful year for the Golden Knights and provided fans with a memorable moment in franchise history.