Big Sean not really furious at Bieber for his Grande grab

Justin Bieber may have wandering hands, but he’s probably not going to find himself in the path of Big Sean’s wandering fists. Probably.

World War Bieb was almost triggered Wednesday when the pop singer popped up at Ariana Grande’s concert in Los Angeles for a duet on “As Long As You Love Me,” wrapping his arms around Grande’s midsection. She giggled and batted him away, but the clumsy clinch was apparently enough to infuriate her boyfriend, rapper Big Sean.

“This kid is about to learn not to touch my girl like that. Beliebe that,” Big Sean tweeted.

Or don’t beliebe that, since Big Sean insisted to TMZ on Thursday that the tweet was a big fake.

Bieber remained blissfully oblivious to the tabloid-shattering catfight he narrowly avoided, tweeting, “Thanks for having me @ArianaGrande and thanks LA. Gotta tour again soon :).”

SWIFT’S MOTHER FIGHTING CANCER

Taylor Swift revealed to her fans Thursday that her mother has cancer.

Swift wrote about the news in a post on her Tumblr page, which her representative confirmed. Swift said she wants to keep the details private, but said her mother wanted her fans to know what was going on.

The 25-year-old singer said she asked her mother to see her doctors as a Christmas gift. She said “there were no red flags,” but they later learned Andrea Swift had cancer.

Though Swift is the superstar, Andrea has become a favorite among Swift’s fans, often earning cheers from audiences at live shows and taking photos with fans.

Swift also encouraged her young fans to remind their parents to go to the doctor and get check-ups.

QUICK TAKES

Spike TV’s reality show “Bar Rescue” is heading to Mandalay Lounge in San Mateo, where host Jon Taffer will deal with a higher-up who has a huge ego and a bad attitude toward female employees. The episode airs at 9 p.m. Sunday. … “L.A. Law” star Richard Dysart died this week at age 86. … Eddie Murphy will receive the Mark Twain Prize for American Humor at an Oct. 18 ceremony at the John F. Kennedy Center for the Performing Arts. Previous winners include Carol Burnett and Tina Fey.

HAPPY BIRTHDAY

Giants pitcher Chris Heston is 27. … Actor Barkhad Abdi (“Captain Phillips”) is 30. … Rapper Afrika Bambaataa is 55. … Singer-producer Kenneth “Babyface” Edmonds is 57. … Actor Steven Seagal (“Half Past Dead”) is 64. … Sportscaster John Madden is 79. … Actor Omar Sharif (“Doctor Zhivago”) is 83. … Actor Max von Sydow (“The Seventh Seal”) is 86. — Staff, wire report

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