Beyonce vs. Britney Spears Plastic Surgery: Kevin Federline 'Saw Face' Botox Twitter Diss

Hip-hop's ultimate "power couple" Beyonce and Jay-Z attended the Canelo vs. Cotto boxing match in Las Vegas on Saturday (November 21). The "Flawless" songstress looked stunningly elegant (as always). But according to Britney Spears' ex-hubby Kevin Federline, the 34-year-old Destiny's Child diva needs to stop visiting her plastic surgeon so much...

The popular sports blog Terez Owens shared this viral tweet during the showdown, which prompted a rather rude response from the Hollywood "wannabe" -

@TerezOwens: "Beyonce Lets The Boobs Air Out At Canelo vs Cotto.."

Apparently, Federline was not impressed with the "fake" look:

@kevinfederline: "@TerezOwens she looked botoxed."

@kevinfederline: "So sad when a beautiful woman chops and screws her face up w/Botox and surgery... #sawface."

@kevinfederline: "It's turning into a Sunday thing..."

Loyal members of #TeamBeyHive quickly went on the defense, insisting that 37-year-old Federline was just hoping for another meager 15-minutes of fame. Well hey, it might be working...

@rgay: "OMG. Kevin Federline had the nerve to come for Bey?!?! What is happening with never has beens tonight???"

@prettybrowng1: "So kevin fedliner tries to shade Beyonce but who is kevin other than the low life britany banged during her depression days?!"

@worldbritney: "@kevinfederline so sad when a man depends of a woman's money... so sad..."

@OHTheMaryD: "First Aaron Carter, now Kevin Federline. Is tonight some sort of Revenge of the Useless White Boy and no one told me?"

@BeyoncesHubby: "And you look jobless, broke and irrelevant."

@turnthatcherry: "@kevinfederline shut the hell up and make sure Britney and your other baby mama get their child support check this month white trash hick."

@fatuma_ali: "Lmao Kevin Federline said Beyonce looks botoxed but Kevin Federline has 3,000 followers and no career. God already got him."

@BeyonceAUS: "Let's not discuss looks @kevinfederline."

Although his name's (sort of) back in the news, Federline has yet to respond to such backlash.

RELATED: Britney Spears Plastic Surgery Scandal? Sexy ESPY Awards 2015 Body Shocks Twitter [PHOTOS]