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Billionaire Warren Buffett didn't just go to see the Creighton Bluejays play the Villanova Wildcats yesterday ... he looked liked the biggest diehard fan in the building.

Buffett -- known as the "Oracle of Omaha," which is where Creighton is located -- was on hand as a guest of Creighton President Timothy Lannon.

Buffett even posed for pics before the game with the school's best player, Doug McDermott.

Just Warren Buffett and Doug McDermott. pic.twitter.com/pCjooySzqI

The only way Dallas Cowboys coach Jason Garrett and quarterback Tony Romo could become more hated by sports fans is if they ... oh, we don't know ... threw on a couple of Duke shirts and went to last night's Duke/North Carolina game.

Oh, would you look at that.

The only people who don't find this photo offensive are Yankees fans, Heat fans, Notre Dame fans and anyone who roots for King Joffrey Baratheon on "Game of Thrones," the Yellow King on "True Detective," and the zombies on "Walking Dead."

Miley Cyrus and Katy Perry are calling each other dirty bitches ... in a full-on feud that erupted over that kiss at Miley's L.A. concert last month.

You may recall ... Miley went in for the kiss as Katy sat in the front row. It looked like Miley was going in for some tongue, but Katy pulled away.

Now the feud.

Katy went on Australian TV and explained, "I just walked up to her to give her like a friendly girl kiss, you know, as girls do." Perry then explained how she was stunned when Miley went in for the kill, adding, "God knows where that tongue has been. We don't know. The tongue is so infamous!"

If Katy meant it as a joke, Miley isn't taking it that way, firing back on Twitter, "Girl if ur worried abt where tongues have been good thing ur ex boo is ur EX BOO cause we ALL know where THAT [tongue] been."

A tiny woman somehow got into Justin Bieber's house Wednesday and found her way into a bedroom ... TMZ has learned.

It's a bizarre story. Just after 5 PM, the niece of the guy who is renting his Atlanta Estate to Justin called the cops and said she came home and found "an Asian female" sleeping in one of her bedrooms.

She called the cops and when they arrived they found 5'5", 110 lb Qianying Zhao waiting outside the home and she had quite the story. She said she had met Bieber on Twitter and was visiting him for a birthday party.

Sadly, she said she realized she was too late for the party so she decided to come to his house and wait for him. She said she found an open door and let herself in.

Zhao was arrested for criminal trespass and placed into "double-locked handcuffs" with her hands behind her back.

It's unclear if Justin was home at the time.

9:25 AM PT -- We just got the 911 call. It's pretty hilarious.

File This Under: "Pot Meet Kettle" ... 'cause alleged bullying victim Jonathan Martin went online last night to CYBER-BULLY Justin Bieber ... telling the pop star he's an EMBARRASSMENT.

Out of the blue, Martin went on Twitter and wrote: "Never be embarrassed of who you are ... Unless you're Justin Bieber."

Obviously, an attempt at a joke ... but not a great move coming from a guy who was just talking to a class about the effects of BULLYING earlier that day.

Also, don't forget ... Martin left the Miami Dolphins claiming several players were picking on him for no reason.

Martin followed up his tweet with an attempted explanation ... saying, "Don't get it twisted... Biebs is one of the most talented artists out there... He just makes some questionable decisions."

Whitney Houston's son-in-law got his ass beaten by one of Whitney's nephews at a formal family gathering ... and it's all because of a long-simmering family feud ... TMZ has learned.

We're told Whitney's nephew, Gary Michael Houston, went nuclear on Bobbi Kristina's husband, Nick Gordon … allegedly SLAMMING him to the floor and pummeling his face -- accusing him of talking crap about the family.

Family sources tell us ... it all went down at a Sweet 16 party for Whitney's niece, Rayah. We're told it was a formal affair -- everyone in tuxes and long gowns -- but Nick showed up in a hoodie and knit cap and "lookin' like a thug."

Gary felt Gordon had insulted the family one too many times ... as soon as the party was over, he delivered the beat down. We're told it was a lopsided fight -- Nick didn't even get in a single punch.

The two are now sluggin' it out on Twitter. Gordon posted, "F*** all of em they've tried to fight me (Gary H) jealous ass n***a."

12:55 PM PT -- We spoke to Andre who tells us, "I found [Jennette's comments] funny. There's a lot of false info in there, but I'll be the mature person about the situation and let it die out."

Andre also posted a Vine video moments ago that seems to be a response to the story in which he says, "Sometimes you gotta live and learn by the mistakes you make. You gotta move on and keep pushing."

"iCarly" star Jennette McCurdy is kissing and telling in a big way about her short-lived "relationship" with NBA star Andre Drummond ... and according to Jennette, the kissing part SUCKED.

McCurdy appeared on Pete Holmes' podcast "You Made It Weird" and spilled her guts about her fling with 20-year-old Drummond.

Jennette didn't pull punches -- admitting she only heard about the guy after he repeatedly chose her as his "Woman Crush Wednesday" on Twitter -- and eventually agreed to talk to Drummond because he "seemed like a big deal."

Jennette says they had some early conversations that "gave [her] pause" but she decided to go out on some dates with him anyway.

McCurdy then describes their first kiss -- which went down after a laser tag date -- saying, "It just didn't go great ... no sparks. The mouths ... the shapes weren't right."

Still, they continued to hang out, McCurdy says ... and he was so into her, he bought her a necklace and got down on his knees during a dinner date and asked her to be his GF.

Even though she wasn't into it, she said yes ... only to break up with him on the phone a few days later.

You gotta listen to the whole podcast ... McCurdy seems to be laughing at Drummond the entire time -- painting him as this pathetic, immature guy who doesn't have a clue about how to court a woman.

But the relationship did start as a public event on social media ... so, fair for Jennette to go public with all the gory breakup details too?

Discuss.

2:55 PM PT -- George just gave us the greatest statement ever ... “Tied one on last night. Not feeling great this morning. I was trying to sleep it off, unfortunately, it was on the casino floor.”

George Lopez had one too many last night at a Canada casino -- law enforcement tells TMZ, the comedian was arrested for public intoxication after passing out on the casino floor.

Law enforcement sources tell us Caesars Windsor security alerted police to the Lopez situation -- presumably after they found him on the floor -- and officers subsequently arrested him
inside the casino bar at Caesars Windsor.

No charges are being filed against Lopez -- we're told he was pretty much dumped in a drunk tank to let him sober up.

Lopez had performed at the casino just prior to his arrest and is scheduled to perform again tonight.

Lopez has been released and we're told he will perform tonight.

Check this out ... TMZ Sports recently asked Kansas City Chiefs defensive stud Brandon Flowers to name his Top 3 favorite strip clubs in the country.

But since Brandon says strip clubs are "kind of frowned upon in the NFL," he agreed to tell us about the one he "hears" about the most instead.

So, here's Brandon's official Strip Club Breakdown:

1) Onyx in Atlanta -- "I heard that one's pretty good"

2) Tootsies in Miami -- "I heard Tootsies has the best lobster tail and rice on earth."

3) 11 in Miami -- "It's a new club that's supposed to be pretty good so I'm looking forward to 'hearing' about that one."

Seth Rogen testified before a Senate subcommittee Wednesday and pledged allegiance -- to "House of Cards."

Seth went to Capitol Hill to voice his support for legislation to increase funding for Alzheimer's research. Seth's mother-in-law suffers from the disease.

By congressional standards, Seth was hilarious ... and a little too hip for the room.

Safe to say Senator Tom Harkin, Chairman of the Senate Appropriations subcommittee, is not a big fan of "Knocked Up" ... but he was clearly amused.

Check out the video. Pretty funny.

Go ahead and laugh ... we all did the first time, too ... but the hip hop version of Billy Ray Cyrus' "Achy Breaky Heart" is a huge hit on urban radio -- even beating out Drake on Billboard's rap chart.

Billy Ray clearly feels urban vindication ...with a smug look of satisfaction as he waved the new Billboard chart from the window of his SUV.

"Achy Breaky 2" -- featuring Buck 22 and Billy Ray -- debuted at number 11 on the Hot Rap songs chart -- edging out Drake's "Worst Behavior" at #12..

BTW "Achy Breaky Heart" was a number 1 hit on the country charts for five weeks in 1992 ... the year Miley was born.

PGA golfer Steve Elkington is getting hammered on Twitter right now ... after making a joke about Michael Sam throwing a purse at the NFL combine.

The 51-year-old Australian -- who won the PGA championship in '95 -- wrote, "ESPN reporting Michael Sam is leading the handbag throw at NFL combine ... No one else expected to throw today."

Moments after the tweet, the backlash began ... with Steve's followers going off on the golfer. Here's a sample:

-- "You are TRYING TO MAKE SURE YOUR PUBLICIST keeps his job aren't you?? Good luck motherf*ker. See your apology at 11 on ESPN."

-- "BREAKING: Irrelevant golfer makes awful joke"

-- "Homophobia is hilarious (to a sh*tty old white dude)."

-- "let me get this straight - a golfer is making jokes about a football player's manliness?"

There's more ... but you get the point.

Jason Biggs' wife just dished out a healthy dose of reality to potential parents ... by tweeting a pic of her placenta in all its bloody glory.

Biggs' wife Jenny Mollen popped out Sid Biggs Saturday afternoon ... and then shared the placenta photo with the caption, "Hope I'm not 'over sharing' but there's no denying my placenta looks super hot and thin in this pic."

The new mom says she wanted to turn her nutrition sac into a pill ... but docs advised against it -- so now she's saving it for a cake topper on Sid's 1st b-day.

LeBron James channeled Oprah Winfrey for his mom's birthday gift ... 'cause SHE GOT A BRAND NEW CAR!!!!!!!

LeBron just surprised his mom with a white Porsche Panamera ... which can run up to $200k.

And if that wasn't enough, the NBA superstar included the following heart-felt message:

"Enjoy and love you momma! Trying to figure out how to give u the world but in the mean time enjoy your new toy! #ProudSon #SheGoneStuntOnMeNow #StriveForGreatness"

As for LeBron's dad -- well, he got something else this week ... a public "thank you" note from 'Bron for not being in his life.

"I have no idea who you are, but because of you is part of the reason who I am today."

Yeah, mom's gift was better.

The perv fan who groped "Modern Family" star Sarah Hyland's chest in Australia this week has been charged with assault with an act of indecency, TMZ has learned.

The 29-year-old man was arrested Tuesday outside a "Modern Family" after-party in Sydney. Hyland was posing with fans when he allegedly grabbed her breast.

23-year-old Hyland immediately left the event in tears while her security handled the creep.

Hyland was remorseful about bailing on the event, saying sorry to all the fans she, "didn't get to say hi to but I had to leave due to an inappropriate touch of a fan."

Khloe Kardashian is pissed at some of her "f**king stupid" Twitter followers who have a hard time telling black people apart -- and it's all over a picture of Sugar Ray Leonard.

The drama began when KK posted a pic for "Throwback Thursday" today featuring Robert Kardashian, Bruce Jenner and Sugar Ray -- and said, "#TBT I love this picture! My daddy. My second dad. My God father."

But some people confused Sugar Ray for OJ Simpson -- a friend and client of her father's -- and clearly, Khloe no likey.

"For those of you that are that f**king stupid.... That's NOT OJ in my #TBT," Khloe tweeted ... "That's Sugar Ray Leonard. Some of you never fail to amaze me!"

On a related note ... Bruce sure looks different these day, huh?