MONSTER IN A BOX Diaz, The Timbersnake (inset)

Five out of six celeb weeklies agree:Cameron Diaz ripped recent ex Justin Timberlake a new one at Prince's Golden Globe after-party on January 15.

Apparently, the trouble started when the Shrek The Third actress thought Justin was getting too cozy with Seventh Heaven reject Jessica Biel. Cam marched over and showed that her rage isn't limited to punching out camera-clicking paparazzi—thus breaking the cardinal rule of fame: Never engage in public bickering at a party where every wannabe-actress/
waitress is supplementing her income selling tips to the tabs.

While the waitresses and coat check girls on the payroll at Us Weekly and OK! say Cameron's tongue-lashing lasted 45 minutes, Life & Style and People's stalker/waitresses clock the spat at 40, but they add the un-attributed detail that Justin "reportedly" punched a cabinet in frustration. Us, on the other hand, has Cam's Charlie's Angels co-star Drew Barrymore stepping in to break up the row (the recently de-Stroked Barrymore has break-up experience).

"Pals" selling out Cam say she'd "kill" to reunite with the SexyBack singer. But Justin's boys advise In Touch that he's "a kid in a candy store," flirting with Scarlett Johansson, erstwhile gal pal Alyssa Milano, and one of Kate Hudson's Q-list friends.

Too busy answering the "to Boca or not to Boca" question, Star forgot to bribe anyone on the party staff. They skipped the spat entirely and fast-forwarded to Cameron's Hawaiian vacay with prematurely bald surfing champ Kelly Slater. Star, L&S, and In Touch keep the pair at "good friends," but racy Us, find the "source" angry enough at Cam to acknowledge "sleepovers."