Hollywood’s biggest stars are rallying around Savannah Guthrie as the search for her beloved missing mother, Nancy, enters its second week.

Everyone from Jennifer Garner to Khloé Kardashian and Jennifer Lopez have taken to social media to show their support for the Today show host, 54.

“That says a lot about the kind of person Savannah is and the sort of bond [she’s] developed with people that she’s interviewed over the years,” a source tells In Touch.

Her Today show family is standing by her too.

Hoda Kotb returned to the morning show on Monday, February 9, to fill in for Guthrie while the investigation into her 84-year-old mom’s disappearance continues to unfold.

“It’s unimaginable that she’s having to endure such a horrific nightmare,” says the source. “Her colleagues have jumped in to help and the whole network is behind her, offering whatever it is she needs.”

What Guthrie needs, though, is answers.

The broadcast journalist made an impassioned plea for the public’s help in finding her mother in an emotional video posted to Instagram on Monday, February 9.

“She was taken and we don’t know where. And we need your help,” she said. “I’m coming on just to ask you, not just for your prayers, but no matter where you are — even if you’re far from Tucson — if you see anything, if you hear anything, if there’s anything at all that seems strange to you that you report to law enforcement.”

“We are at an hour of desperation,” Guthrie confessed.