American Idol 2011

TMZ broke the story ... Lauren lost her voice and could not finish rehearsing for tonight's finale.

Producers have brought Haley Reinhart to the set and she is currently in wardrobe. If Lauren can't compete, Haley will square off against Scotty McCreery for the title.

We're told during the rehearsal this afternoon, Lauren -- who has been losing her voice -- was supposed to sing three songs. She got through the first, struggled through the second and was unable to perform the third.

Our spies say a doctor on the set has ordered Lauren not to sing or speak, but there is a "real possibility" she will not be able to perform on tonight's show.

We're told if Lauren is unable to perform, producers will reinstate the third place finisher -- Haley Reinhart who will then compete against Scotty McCreery for the title.

*SPOILER ALERT*

The name of the song is "Like My Mother Does" co-written by Nikki Williams -- who married Cage's son Weston last month in Tennessee.

The song first debuted in 2008 ... but "Idol" finalist Lauren Alaina will sing it tonight.

Interestingly, former "A.I." Season 7 finalist Kristy Lee Cook released a version of the song on her 2008 album, "Why Wait."

As for fellow finalist Scotty McCreery -- we're told he's gonna sing a song called "Love You This Big."

TMZ obtained a copy of the contract all Idol finalists had to sign before the show -- which spells out exactly how much dough they'll pull in if they're invited to participate on the international tour.

In addition to the $1,000-per-concert -- the documents show each finalist will share in merchandise profits from the tour ... and will also receive $50 in spending cash for non-concert days.

Finalists are also guaranteed to stay in "Marriott/Hyatt style" hotel accommodations while on the road -- and will fly coach between tour stops.

According to the contract, the tour will kick off immediately after the Season 10 winner is announced on May 25 -- and will go until the end of September.

We're told the town has already raised $45 thousand in CASH for the event ... and local companies have donated roughly 8 grand in services.

The event will include a traditional pork barbeque, local entertainment, crafts, a parade and a concert by the country crooner himself!

As a thank you for all the local love, Scotty is expected to take his acoustic guitar and sing a whopping SIX songs -- compared to the usual two or three he belts out on Idol.

We ran into this season's seventh place winner last night in L.A. -- where he channeled Randy Jackson by saying, "Just because I'm not in the competition, don't mean I'm not in it to win it"

Stefano added, "Definitely still waiting for those Grammys."

When Gaga appeared on the show, producers smacked an "Idol" logo over her sexually explicit stilettos because they each had a Lucite penis for a heel.

The porno pumps by London fashion brand Void of Course may be racy but they ain't cheap ... they retail for over $4500.

It takes a lot of money to ride these X-rated disco sticks.

TMZ spoke with a source extremely close to Lusk ... who tells us Jacob never wanted to perform the Jordin Sparks /Chris Brown duet, "No Air" on Wednesday's show ... but Iovine pressured him into it.

We're told Lusk really wanted to perform the Gnarls Barkley hit, "Crazy" -- but Iovine was so insistent on "No Air" that he basically "beat it into his brain" until Lusk finally gave in and agreed to perform the song.

During the show, Randy Jackson told Lusk, "I don’t think that’s the direction for you ... I don't think anybody on this stage should be doing duet songs."

Sources close to Casey tell TMZ ... Abrams has been telling his friends, family and hometown supporters in Idyllwild, CA to stay united ... and use their votes to send Haley through to the next round.

Casey has denied being in a romantic relationship with Haley -- but last week, he referred to her as his "special musical friend." So ... yeah, they're totally dating.

Sources connected to the deal tell us ... Pia has agreed to perform at a private birthday party on May 8th ... which happens to be Mother's Day. We're told the deal will only require Pia to perform a small handful of songs.

According to sources, Pia was initially offered $50,000 for the gig and she TURNED IT DOWN ... but the people throwing the party wanted Pia so badly, they immediately doubled their offer ... and Pia signed without batting an eye.

We're told Pia will be picked up in L.A. in a limo and chauffeured directly to the party ... though it's unclear exactly where the party will go down.

Lauren's hometown of Rossville, Georgia -- population 3,500 -- was devastated by the twisters ... leaving most homes without power, land lines, or mobile phone service.

Now Lauren's friends and family tell TMZ they're concerned because Lauren's main supporters couldn't see the show and weren't able to vote.

One friend said, "It would be a travesty if she was taken off the show because of an Act of God" -- and another added, "I do believe the weather should be taken into consideration when it comes to the voting."

One friend who was outside the damage zone tells us she voted more than usual for Lauren ... and made online appeals for others to do the same.

25-year-old Paige Miles -- who claimed 11th place on the show -- was on her way home from rehearsal in Florida ... when something went terribly wrong and her SUV caught on fire.

Miles, who documented the terrifying incident on her Facebook page, explained, "The electric shut down, the car doors wouldn't open, i jumped out my window and watched my mother's Envoy blaze."

Moments after she emerged from the fiery wreck, Miles said she was crying and shaking ... and her blood pressure was through the roof ... but she didn't seem to have suffered any major injuries.

Afterward, Miles took photos of the charred remains of her mom's ride -- pretty damn scary.

TMZ spoke with Barreto -- a Top 24 finisher -- who tells us he reached out to Secada after performing the Grammy winner's hit song "Angel" ... hoping to get some feedback from his idol.

Jon told the kid he was impressed -- and offered to take 23-year-old Barreto under his wing ... "kind of like a mentor of sorts."

Jovany immediately moved to Miami to pursue the opportunity -- and Secada tells us there are plans in the works to record something together in the very near future.

The music video shoot will go down Monday.

By the way ... Tyler has a memoir called "Does the Noise in My Head Bother You?" coming out on May 3.