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Lance Bass, Amanda Bynes

Kevin Mazur/WireImage

And the list of celebs worried about Amanda Bynes continues to grow.

The former child star's behavior has caught the attention of many stars in the last few months, and the most recent addition is her old friend Lance Bass.

Bass, who produced the 2005 film Love Wrecked which starred Bynes, shared his feelings on what's been going on with Amanda during an interview with Las Vegas radio's Mark and Mercedes show on Wednesday.

"It's one of those situations where obviously there's some mental problems there and she's not able to see that. We all are [able to see it]," the 'N Sync member reportedly said.

"No one is able to get to her," he told the radio station. "I'm actually really scared for her, and I hope someone is able to get to her to give her the help she needs."

However, regardless of Lance's concerns, the actress herself insists, "I'm Not Crazy."