Britney Spears is apparently not the sure-fire concert draw she once was. Since lot of current or former fans have apparently decided not to hit that "BUY" button one more time after all, the web discounter Groupon has been selling 50%-off tickets for more than half the shows on Spears' 33-city tour. And not even all those half-price tickets have gotten snatched up. 

The tour opened Thursday night in Sacramento to what the local paper described as a sell-out crowd. But a week prior to the show, Groupon offered $59 face-value tickets for a bargain basement price of $30. Groupon's web site shows that 1,400 people took the Sacramento offer before it sold out. But since there was a maximum of 8 tickets allowed per sale, that means there could have been anywhere from 1,400 to 11,200 people getting into the arena via the last-minute half-price offer. Similar deals have been offered in 18 cities on the tour.

Is this a sign of the public's enormous Britney fatigue, a wave of the ticketing

After 28 years of living with KISS singer Gene Simmons, it seems like Shannon Tweed -- former model and mother of his two children -- might have finally had enough. During the couple's appearance on The Joy Behar Show, the rocker made a comment that seemed to seriously irk his lady. At that point, it appears Tweed decided she couldn't stand her longtime partner another moment, so she got up and left the studio.

[Video courtesy "The Joy Behar Show"]

And while speaking to Kathie Lee and Hoda on "Today," Tweed mercilessly skewered the Kiss bassist every chance she had. And when asked specifically about their future, Tweed said, "It's not looking great."

Their palpable tension seemingly stems from an incident depicted on the last episode of "Gene Simmons Family Jewels" where Tweed confronts her longtime lover with a photo of two ladies hanging on his arms that was posted on TMZ. Of course, it's wasn't just the one photo that did it: Simmons has claimed to have slept with literally

The next time you play Rock Band don't invite Jon Bon Jovi. The 49- year-old singer's wife and kids recently convinced him to give the popular videogame a try. So he picked up the microphone and launched into a rendition of his classic "Wanted Dead or Alive," backed by family on virtual guitars and drums. He never made it through the song.

"I failed--it buzzed me down," Bon Jovi admits over lunch in Manhattan.

Fortunately for Bon Jovi, audiences in real arenas around the world are kinder. His eponymous band took home $125 million over the past 12 months by FORBES' estimates, more than any other music act besides U2--and more than relative whippersnappers Justin Bieber, Katy Perry and Kanye West combined. In the past year the band has played 74 gigs in 15 nations, grossing $203 million in ticket sales and $20 million in merchandise; Bon Jovi ranks No. 8 on this year's Celebrity 100.

Gallery: The Celebrity 100

The 10 Most Powerful Musicians

Surprised? Bon Jovi out-earns younger,

Folk singer-songwriter Ruth Gerson isn't afraid to "go there." Her angst-ridden latest release, Deceived, takes on her own dark past of abuse to bring awareness to domestic violence, giving voice to the victims who don't always speak up. In fact, the entire proceeds from her album and concert ticket sales are going to national and local charities, including Sanctuary For Families, Shalom Bayit, the Elizabeth House, the AVON Foundation, and the Family Violence Prevention Fund,

Judging from her credentials as a singing teacher--she has taught singing and songwriting as a Forbes College Fellow at Princeton University, and at he Blue Bear School of Music--Ruth undoubtedly has the ability to record hit songs with broad appeal. But instead she focuses on more somber folk style--"murder ballads" is how she describes her compositions--that suits the seriousness of her subject matter. Her new album also includes songs written by country crooners Bobbie Gentry and Dolly Parton.

HEAR RUTH'S COVER