From: TMZ


We got the video — Jamie Lynn Spears freaking out with a huge knife as she tries — and succeeds — in breaking up a sandwich shop melee.

Britney Spears’ lil sis was in the Pita Pit in Hammond, LA last month when a female friend got caught in the middle of a bunch of guys brawling. Now we have surveillance video of JLS playing peacemaker … while waving a 7-inch blade!

It’s a wild scene — she pulls her gf out of the scrum … then, when the dudes keep going at it … Jamie Lynn, mother of a 6-year-old, struts behind the counter, grabs the knife and waves it around. While she never cuts anyone … the threat was enough to break up the fight.

Chillest dude in the whole mess though is the pita clerk who calmly blocked Jamie while calling for backup.

Only question — why didn’t she whip up a pita while she was at it? Big mistake, Jamie Lynn. Huge.