Hey Britney, Where's Alli?

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The last few days have been — to put it lightly — a whirlwind for Miss Britney Spears. And usually, when things get tense for the troubled pop star, her cousin and best friend Alli Sims is by her side.

However, witnesses are telling OK! that Brit's best pal, who was at the singer's house during the early hours of Thursday night's standoff, is now 3,000 miles away in New York City, where Alli was spotted at Manhattan nightclub Tenjune.

"Alli came to New York to work," a friend of Brit's cousin explains to OK!. "She said she's here for work and really busy." And it looks like the stress of the whole Britney situation has gotten to Alli. "She's not talking about Brit, but she's obviously overwhelmed. People are calling and harassing her all day."

Meanwhile, Britney's mother Lynne was photographed in Kentwood, La., on Saturday morning, visiting the grave of her sister Sandra, who passed away in 2007 from breast cancer.