Arkansas finally earned its first Southeastern Conference win for second-year coach Bret Bielema.
Brandon Allen threw for 169 yards and Arkansas snapped a 17-game Southeastern Conference losing streak with a 17-0 win over LSU on Saturday night.
The conference win is the first for the Razorbacks (5-5, 1-5 SEC) since 2012, and it's Bielema's first SEC win after 13 straight losses.
Arkansas' shutout is the school's first since a 20-0 win over Utah State in 2006, and it's the first in an SEC game since 2002 against South Carolina.
Jonathan Williams and Alex Collins ran for touchdowns for the Razorbacks, who held the Tigers (7-4, 3-4, No. 17 CFP) to 36 yards rushing on 32 attempts.
The loss is the second straight for LSU. It's only the second time it has lost back-to-back games under coach Les Miles.
The Tigers' last shutout loss was to Alabama in the national championship game three seasons ago, and they struggled mightily on offense against an Arkansas team that had become accustomed to heartbreak in several losses this season.
Anthony Jennings, a week after completing 8 of 26 passes for 76 yards in an overtime loss to Alabama, struggled once again on Saturday - finishing 12 of 22 passing for 87 yards. The Tigers were outgained 264-123 by the Razorbacks.
While LSU fell to 25-2 under Miles in games following a loss, Razorback Stadium erupted in cheers of relief when Collins scored on a 5-yard run early in the fourth quarter to put Arkansas up 17-0.
The relief turned to celebration when the game ended, with fans storming - and nearly covering all of - the field.
Arkansas' last SEC win was a 49-7 blowout over Kentucky on Oct. 13, 2012. That came the season following the Bobby Petrino scandal and firing, with interim coach John L. Smith leading the way.
Bielema had lost his first 13 SEC games since leaving Wisconsin for Arkansas following the 2012 season, several in gut-wrenching fashion this season.
Led by a defense that harassed Jennings throughout, sacking the LSU quarterback four times, the Razorbacks made sure not to suffer the same disappointment on Saturday.
Allen finished 16 of 27 passing, including several key third-down completions, and Williams gave Arkansas a 10-0 halftime lead with his 1-yard touchdown dive midway through the second quarter.