For a girl who could go to the Gagosian Gallery and pick up an original Basquiat for a few million, one of music's top-earning artists sure has simple taste ...

We caught Brit shopping for some wall hangings on a street corner in Calabasas Saturday, checking out bad reproductions of unidentifiable European city street scenes.

One work caught her eye and she took it home to her $8.5-million mansion. Guess when you spend that much on the house, you don't have much left for decor!

Rihanna's Diamonds World Tour has had its first cancellation ... the pop star has postponed her March 10 Boston date because she has laryngitis, a Live Nation rep has said in a statement:

"Unfortunately, following her sold-out concert on Friday, Rihanna has contracted laryngitis and per doctor's instruction is unable to perform this evening."

The tour kicked off in upstate New York March 8, with a performance in Buffalo. Ri Tweeted after the gig, "#BUFFALO I will never forget how you made me feel tonight!!! Thank you from the bottom of my heart!! #1Love always"

Rihanna is expected to return to the stage March 12 in Baltimore.

Rachel Zoe may be super-stylish, wealthy, a successful entrepreneur and Hollywood's hottest stylist, but putting all that aside, this mother-son smooch is just CUTE!

Justin Timberlake included a little jibe at Kanye West in his Saturday Night Live performance last night ... getting back at the rapper for criticizing his new single "Suit & Tie."

Mr. Kardashian dissed Timberlake and Jay-Z's new track during a performance at New York's Hammersmith Apollo, recently, saying, "I got love for Hov, bit I ain't f-cking with the 'Suit & Tie.'"

JT countered with some tweaked lyrics last night. Instead of: "Aww, sh-t so sick, got a hit and picked up a habit," Timberlake altered the words to: "My hit's so sock, got rappers acting dramatic." Wonder if Kanye was listening closely?

Of course, Kanye collaborated with Jay-Z on 2011's Watch the Throne, which was a huge commercial success.

While Kanye's cool with being #1 on the charts, he seems to have a problem when other artists sell albums, which is what lead to a three-minute rant about the negative affects of commercialism on music, during his Apollo gig. And, of course, being on E!'s top-rated Keeping Up With the Kardashians and impregnating reality TV's biggest star isn't bowing to commercialism at all, is it, Kanye???

Talk about some sexy soccer spectators! Heidi Klum and her bodyguard boyfriend Martin Kristen hit the soccer field in Brentwood Saturday to support Heidi's kids -- she's almost got her own soccer team!

The pair were lovey-dovey on the sidelines as the kids played, probably spending some quality time together before Heidi starts work as a judge on America's Got Talent . The supermodel mom was recently hired on to the NBC competition show after the addition of Howard Stern as a judge -- for a reported cost of $20 million -- failed to boost ratings.

Heidi's experience as a judge on her own show, Project Runway undoubtedly played into NBC's decision. Do you think she can make AGT a hit?

Ben and Jen took Violet and Seraphina to Michael's for some art supplies Saturday and while we're curious what projects the kids have brewing in their brains, we're more curious to know why ben donned a beanie!

The sexy, Oscar-winning actor/director was decked out in a new blazer, dark jeans and simple lace-up oxfords but why'd he top it off with a knit cap? Is Ben channeling Beckham, or what?!

Miley Cyrus wasn't taking any chances last night (yes, that's Miley in the Billionaire Boys Club sweatshirt designed by Pharrell) ...

After X17 snapped EXCLUSIVE pix of Miley with her new "friend" Paul Khoury Thursday night, the pop star opted for a chill evening out with pals Friday night -- sans boy drama.

X17 first spotted Miley without her engagement ring from fiance Liam Hemsworth on Wednesday night. And it spiraled downward from there ...

Reports have been swirling that Miley's man Liam "made out" with January Jones at a pre-Oscar party last month. And Liam's fled to Australia to spend some time apart from his buzz-cut fiancee ... Seems like there's trouble in paradise!

Check out this video we obtained of that fateful night at the Grey Goose pre-Oscar party at Chateau Marmont ...

I might actually watch this episode!

Khloe Kardashian pulled out ALL the stops Friday for a Keeping Up With the Kardashians shoot at the Bel Air Hotel with her family.

Guess the 5'8" Mrs. Odom figures now that her sis Kim is pregnant, it's her turn to sex-it-up a bit and grab the spotlight!

Khloe wore garter-belt pantyhose and loooooow-cut dress. And we love what she did with her hair with soft waves and the ombre color. Dare we say it? Khloe Kardashian looks HOT!