DEMI Lovato is out, Pink is in.

Pop superstar Pink was admitted to an Australian hospital after suffering a stomach virus. She was forced to cancel her “Beautiful Trauma” world tour’s first concert in Sydney.

Promoter Live Nation tweeted that Pink was admitted to a hospital on Sunday suffering from dehydration and was discharged. But she was readmitted and diagnosed with a gastric virus hours before her Monday concert.

“Pink remained in hospital overnight, continuing her treatment and recovery. She will be reassessed by her doctors,” Live Nation said in a statement.

The canceled shows are expected to be rescheduled.

Meanwhile, Lovato has checked out of the hospital she was rushed to two weeks ago for a reported overdose.

A person close to Lovato said she was released from Cedars-Sinai Medical Center in Los Angeles over the weekend.

Lovato was hospitalized on July 24.

The 25-year-old last week said she remains committed to overcoming addiction.

She has received support from fellow entertainers since she was hospitalized, including Bruno Mars, Ariana Grande, Ellen DeGeneres, Lady Gaga and Justin Timberlake. AP