Tameka Foster is said to be insecure, and wants to completely control everything Usher does. If this is true, then Usher has married stalker. The New York Post reports:

Foster was "domineering" and displayed her trademark "Tameka wrath" during a video shoot for Usher’s new song, "Love in the Club," the weekend of March 15 in LA.

Our on-set source said Foster was upset when she found out stunning singer/songwriter Keri Hilson was personally picked by Usher to play his love interest in the video.

"It was supposed to be a sexy video shoot," our spy said. "And Tameka was there the entire time guarding like a watchdog. It was ridiculous – she knows Keri and knows she’s no video ho or Karrine Steffans." Steffans, nicknamed "Superhead," wrote the book, "Video Vixen," about her alleged flings with Usher and several other artists.

"Tameka is very insecure," our source said. "Even in rehearsals she was weird and clearly not happy that Keri is so gorgeous. Tameka threw a lot of attitude. The day of the shoot, Tameka dressed Keri very badly – she looked like an extra. Tameka wouldn’t let Keri have her hairdresser there – she had to use the hairdresser who was doing the extras."

Foster also took a dislike to Usher’s longtime choreographer, Jamaica, and banned her from the set. When Usher and Foster were spotted at the Beverly Hills Hotel last week, "They barely said one word to each other," we’re told.

The two have had a choppy past. After they got engaged, Usher fired his mom, Jonetta Patton, as his manager and also axed his publicists. "Tameka was the one and only one to call the shots," spies said.

Usher’s manager, Benny Medina, said:

"Keri could not have been happier with Tameka’s choices in the styling, hair and makeup … Jamaica was flown out and arrived a day late to do Keri’s choreography, and was on-set at all times. The shoot itself went brilliantly."

What? You mean it wasn’t the crack? Supahead may have caused all the problems. Here’s more:

Recent reports have suggested that Karrine Steffans, the self-proclaimed “Video Vixen,” may have caused the impending divorce of Whitney Houston and Bobby Brown. But a source with knowledge of the relationship tells TMZ that it’s Brown who has sought out Steffans for moral and financial support: He stays at her L.A. home “frequently” and Karrine actually ponies up for Bobby’s pre-paid cell phone.

According to the TMZ source, there is in fact no romance between Brown and Steffans, and that outsiders are creating that illusion because of her past, in which she was known as “Supahead” by legions of R&B and hip-hop artists to whom she provided sexual services on the sets of their videos. She wrote a book about her experiences, “Confessions of a Video Vixen,” which was a New York Times bestseller.

Ironically enough, Steffans told Grove back in August that she didn’t want to “wreck any marriages” and that she was “a big fan” of Whitney’s. “I want her to come back and sing her heart out,” said Karrine of Whitney.