There have been no signs of missing nursing student Holly Bobo since she was kidnapped from her Tennessee home earlier this year, and her family is marking her 21st birthday with a renewed call for information that can help find her.

Holly was last seen on April 13 when she was taken from her home before school by a man dressed in a camouflage outfit and there have been statewide searches looking for her since then.

Her cousin Whitney Duncan, an aspiring country music singer and contestant on Survivor: South Pacific has been an outspoken advocate for Holly, often tweeting updates about the search for her. She wrote on her Twitter page on Wednesday about her beloved cousin. “Today is Holly's 21st birthday... keep her in your prayers please.”

After a desperate plea for the safe return of her missing cousin, rising country star Whitney Duncan is dousing rumors that another relative is responsible for her disappearance.

Duncan’s pretty 20-year-old cousin, nursing student Holly Bobo, was reportedly abducted from the front lawn of her parent’s house in Tennessee while her brother watched from inside the house.

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And now Whitney took to her Twitter page to clear his name, and debunk rumors that Holly’s 25-year-old brother, is a suspect.

“My cousin Clint, Holly's brother, is NOT a suspect & I'm sick of people saying that he is. He has been cleared for good reason. Shut up,” an outraged Whitney tweeted Monday afternoon.

Rising country star Whitney Duncan has taken to Twitter to make a desperate plea for the safe return of her missing cousin, Holly Bobo.

In a case which has gripped the nation, the pretty 20-year-old is presumed to have been abducted from the front lawn of her parent's Parsons, Tennessee home and forced into the woods by an unknown man wearing hunting camouflage.

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More than 1300 volunteers have been combing the area looking for clues, and Bobo's celebrity cousin is reaching out for more help in finding the beloved nursing student.

"Lord, lead us to Holly today," she posted on her page of the social networking site.

"Still searching…we CANNOT give up y'all!!!!"

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Duncan, who signed to Warner Bros after competing on the singing show Nashville Star, has been begging for help since Bobo disappeared on April 13.

"We are offering a $25,000 reward to anyone with info leading to the safe return of Holly," she wrote. "Please help us. Thank u."

Bobo's 25-year-old brother, Clint, watched his sister and a man walk into the woods last Wednesday.  He told authorities that when he saw then from a distance and only from behind, he thought the man she was with was her boyfriend.

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It was only later, when he found blood outside the house, that he called police reporting that Holly had been taken against her will.

Police have now widened the search and are continuing to work around the clock to find Bobo.

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"I can't thank you all enough for all the efforts to find Holly," wrote Duncan. "Keep it up until she is home with us."

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