Fresh off her stint in the Priory mental-health clinic, "Britain's Got Talent" runner-up Susan Boyle is getting set for a 20-date tour with the reality show.

Following her encore performance of "I Dreamed a Dream" during the "BGT" finale on May 30, the Scottish singer entered the clinic, raising questions about whether she would miss the tour entirely. But Boyle checked out Friday, returned to her home in West Lothian, and the U.K.'s Daily Mail is now reporting that she arrived in London on Monday to begin tour rehearsals.

According to the paper, Boyle received 24-hour care from Dr. Sarah Lotzof, a private physician who accompanied the singer on a flight back to London from Edinburgh on Monday.

"She now knows she can contact Dr. Lotzof any time of day or night — so she's raring to go," an unnamed show source told the Daily Mail.

Arriving at Heathrow Airport, Boyle smiled and waved at photographers, looking like her usual jolly self. Her beloved cat Pebbles also reportedly made the trip.

"I feel bloody fantastic," she told the News of the World.

Calling her stay at the Priory clinic "a little holiday," Boyle said, "I want to take on the world. I've got my sleeves up ready. From now on there's [no more] crap."

Boyle will spend the next few days in rehearsals before the tour begins Friday in Birmingham, England. The tour will continue through June before wrapping up in Bournemouth on July 5. Boyle is expected once again to sing "I Dreamed a Dream" during the shows.