Dancing with the Stars

Johnson -- who's paired up with Pittsburgh Steelers great Hines Ward -- took a nasty spill while rehearsing with the NFLer for an upcoming show.

According to her rep, Johnson was taken to an L.A. area hospital for "precautionary measures to assure she is OK."

As TMZ first reported, Hines had a run-in with cops early Thursday morning after a mix-up with a car being reported stolen. Hines released a statement after the incident saying things were all good -- and when we spotted him out last night with "Dancing" partner Kym Johnson, he told our guy, "I actually thought I was on 'Punk'd' ... Something about guns pointed at me wasn't very fun."

The video clearly shows the female driver of a Honda Civic pulling into a gas station in Studio City, CA followed by a police car. The woman emerges from the vehicle and complies with the cops ...laying face first on the ground as officers ordered Ward out of the car.

Ward -- who was described as "cooperative" -- kept his hands in the air during the incident and followed orders until cops placed him in handcuffs.

After Hines was taken into custody, two cops approached the passenger side of the car with their guns drawn and took a closer look inside the vehicle. But they both quickly holstered their weapons once they realized nobody else was inside.

TMZ broke the story ... cops pulled the car over because it had recently been reported stolen. But it was all a mistake and Hines and the driver were released after cops discovered the stolen vehicle report was way outdated.

The "Dancing with the Stars" contestant was a passenger in a Honda Civic around 2 AM ... when LAPD officers flipped on their lights and sirens and pulled the car over.

Law enforcement sources tell us cops had run the license plate and noticed the car had been reported stolen. We're told police drew their weapons ... and ordered both Hines and the female driver out of the car and placed them both in handcuffs.

The female driver then explained ... SHE was the person who reported the car stolen in the first place after an incident involving a valet. But she got her car back ... and forgot to tell cops to call off the alert.

We gotta ask...

In order of appearance -- Chelsea Kane, Mark "The Beatmaster" Ballas, Lil Romeo, Chelsea Hightower ... and "Idol" castoff Pia Toscano.

It's been in the works for a while -- and an hour ago, the deal was sealed.

Pia's performance signifies a borderline incestuous cross-pollination between the two biggest shows on TV ... "American Idol" and "Dancing."

And if that's not enough -- Pia will be back on "Idol" tomorrow for a special cast-off reunion.

Pia says she thinks we gave her good advice when she was in our office last week -- stand next to someone famous to fuel the rumor mill.

Pia and Mark hit it off so well during their date in L.A. on Friday, that Mark invited Pia back to the West Coast for another round of tonsil hockey ... and TO MEET HIS MOTHER.

Our spies say Pia is flying in from New York later in the day and will have several dates with Mark during her stay. And they've already scheduled an evening where Mark's mother, Shirley, will break bread with the "American Idol" castoff.

TMZ broke the story ... Pia and Mark had a hot date last Friday and sucked some serious face. Pia was angling to meet Mark for awhile, and slipped Mark her phone number using "Dancing with the Stars" contestant Chris Jericho as a go-between.

Mark, we're told, is "totally into Pia and thinks she's amazing."

As one spy told TMZ, "They're totally smitten."

TMZ broke the story ... Mark and Pia went on a dinner date in L.A. ... and now we know what they had for dessert -- a big, fat mouthful of each other.

As TMZ first reported, Pia and Mark went out on a date Friday night and it went real well ... so say our spies.

So here's how it went down. Pia and Mark both shoot their respective shows -- "American Idol" and "Dancing With the Stars" -- on the CBS Television City lot in L.A.

We're told Pia had her eye on Mark for several weeks, but needed an introduction. So Pia -- who turns out is pretty resourceful -- has a friend who is friends with Jericho, a contestant on "Dancing With the Stars," Pia gave her friend a piece of paper with her phone number on it, who then passed it along to Jericho, who then passed it on to Mark.

Mark, we're told, was more than receptive. Even though he has an album coming out Tuesday -- he rescheduled a music video shoot so he could go on his big date on Friday.

They were both gussied up as they left Gulfstream restaurant in Century City, as Pia told us she -- like everyone else -- was surprised she got the "A.I." heave-ho.

Until Pia got the boot, they were both rehearsing and shooting their shows next to each other at CBS Television City in L.A.

The former "Dancing With The Stars" contestant became an ambassador for The Candie’s Foundation in 2009 when she was 18 ... just a few months after giving birth to her son, Tripp ... and according to tax documents, the job PAID OFF.

The foundation’s website says Bristol "plays an important role by helping other teens understand the incredible challenges teen parents face, and encouraging them to wait until they are socially and financially independent to start their families.”