By Jennifer Wiley, News Of The World

X FACTOR favourite Alexandra Burke has been targeted by a greedy ex hawking a sordid sex tape of her for £100,000.  She strips, we have sex, you can see everything

Alex, 20, hid her anguish as she sang her heart out in last night’s semi-final, knowing evil D’andre West’s plan could wreck her dreams.

Friends say sicko West is stalking her. This week he admitted to us: “I want to make money— one big lump sum.”

West is determined to cash in on the graphic 10-minute video— and shatter beautiful Alex’s dreams of superstardom.

West, who is still obsessed with Alex’s every move, met with News of the World reporters last week in his bid to hawk the material which features full sex and another sex act.

We haven’t paid him a penny. But as he smugly showed off the footage to our investigators, he boasted:

“I want to make some money. . . I’m not interested in anything less than £100,000. If she becomes a big star this is easily worth that. She strips, we have sex, you can see everything.”

Chillingly the 28-year-old creep added: “There’s a possibility SHE’D want to pay me to STOP me from selling it, too.”

And he claimed he’d already been offered £20,000 by X Factor bosses not to make the tape public, but last night they emphatically denied it.

The News of the World never had any intention of doing business with West. But we played along to expose the rat—and have tipped off 20-year-old Alex about his plan to cash in on their two-year relationship.

A friend close to the star revealed she is now terrified the tape—made when she was just 18—could end up on the internet.

We were alerted to West by close friends of Alex who asked us to investigate him.

Pals reported that he has been STALKING Alex on her incredible X Factor run—sending sinister texts revealing he knows exactly where she is and even what she’s wearing.

She has considered going to the police but doesn’t want anything to distract her from winning X Factor.
Mentored by Cheryl Cole, she is now favourite to clinch the £1 million deal after her stunning performances in recent weeks led top judge Simon Cowell to back her for first place.
Alex’s friend said: “It’s almost two years since Alex split with West and she has more than moved on—but he never has.

“Now she’s on the brink of the big time he’s bombarding her with text messages saying he loves her and wants her back.

“Last Thursday he sent her a text that spelled out he KNEW she was at the TV studios in London, adding, ‘Nice brown jacket.’ Alex was really spooked by that because he was obviously watching her. She WAS at the studios and she WAS wearing a brown jacket.

“Alex is already a worrier. Now she can hardly sleep with the stress. It seems West has somehow found out her schedule and tracks her movements. But most worrying is his plot to sell the sex tape.”

Dreadlocked West told us even if Alex didn’t win X Factor he was confident she’d become a huge star anyway—and he’d cynically release the video right at the point when she was enjoying massive success.

“I’m happy to wait,” he said. “I’m only interested in receiving one big lump sum. Even if it’s a year from now she’ll get really big and I’ll sell it then.”