Ron Artest, now known as Metta World Peace, had run hot and cold with the Lakers, per his reputation. In 2009, he was brought in to be a stopper on defense, and while he had flashed great offensive skills in the past, his skills had somewhat eroded at this point, with his three-point percentage taking a big hit.
In the closing seconds of a brutal slog of a Game 7 in the 2010 NBA Finals, Rajon Rondo had knocked down a shot to pull the Boston Celtics within three. The Lakers were more or less trying to run out the clock.
Then, the ball found Artest in the corner. As he fired the shot off with plenty of time on the shot clock, Staples Center emitted a collective groan, before the ball found the bottom of the net, making Artest part of Lakers lore forever.