One's a neo-soul goddess. One's a chart-topping rapper. And one's a much-maligned ready-made pop star.

On the surface -- or below the surface for that matter -- Jill Scott, Nelly and Ashlee Simpson don't have much in common. But in a rare cosmic occurrence, these stars have aligned this week and are all performing concerts at Detroit's Fox Theatre. Catch 'em while you can; like Halley's Comet, this may not happen again for another 76 years.

Three words: "Saturday Night Live." Two more words: "Orange Bowl."

"What are, 'Events Ashlee Simpson probably never wants to relive,' Alex?"

Sure, her first album, "Autobiography," has sold 2.7 million copies, and it debuted at No. 1 on Billboard's albums chart, but it seems when people talk about Ashlee Simpson, who performs Thursday at Detroit's Fox Theatre, all they talk about is "Saturday Night Live" and the Orange Bowl.

Who can forget when Simpson was caught using a backing track on the Oct. 23 episode of "SNL," a gaffe she first blamed on her band and later blamed on acid reflux?

The continued backlash Simpson has suffered surprises even radio professionals.

"I expected it would be an immediate issue (after 'SNL'), but I didn't expect it to last this long," says Dom Theodore, program director at WKQI-FM (95.5). He says demand for Simpson's music after the "SNL" "debacle," as he calls it, went down considerably.

"It's very unfortunate, because she was a break-out artist last year," he says. "But pop culture is not very forgiving."

Simpson's name has since been synonymous with all things faux; last month, when the origin of a message from an ailing Pope John Paul II was called in to question, newscasters accused the Pope of "pulling an Ashlee Simpson."

Then came an off-key performance of "La La" at the Orange Bowl, which ended with Simpson receiving a chorus of boos from a stadium full of football fans.

Through it all, however, Simpson has talked-up the devotion of her fans, and those fans will get their chance to show their support for Simpson at Thursday's show.

Simpson's set is said to be about an hour long, consisting of songs off of "Autobiography," as well as covers of songs by the Pretenders, Blondie and Madonna.

And yes, she allegedly sings live.