Ashlee Simpson Feeling 'Better' After Collapse

Ashlee Simpson Feeling 'Better' After Collapse
Sthanlee B Mirador/Shooting Star

updated 12/21/2005 AT 02:45 PM EST

originally published 12/20/2005 AT 08:00 AM EST

Ashlee Simpson has returned stateside to be with her family in Dallas and is "getting better" after being hospitalized for exhaustion in Japan over the weekend.

"She is staying at her mom and dad's house, where Jessica has been staying," a source close to the singer tells PEOPLE. "She is getting better. She is looking forward to vacation."

Simpson, 21, collapsed in Tokyo on Thursday following a performance on MTV Japan and was taken to an area hospital by ambulance. She was forced to cancel her appearance at Monday night's Radio Music Awards in Las Vegas.

For the past two months, Simpson has been doing appearances in support of new album I Am Me, which debuted atop the album charts in October.

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Simpson told PEOPLE last month, "Everything I've gone through this year – whether it be a breakup, or SNL, finding myself – I feel like I faced a dark side and a light side and that's okay."
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