Susan Boyle, who became famous the world over after appearing on the "Britain's Got Talent" television show, returned to the stage on Monday after cancelling a weekend performance amid concerns over her health.
The 48-year-old church volunteer from Scotland delighted the home crowd of 6,000 in Glasgow by taking the stage and singing "Memory" from the musical "Cats" followed by the tune that made her a star, "I Dreamed a Dream" from "Les Miserables."
"She sang in front of 6,000 Scots," said a spokeswoman for the tour. "She's ecstatic," she added, saying Boyle earned a standing ovation from the audience.
Boyle's first performance on Britain's Got Talent in April was downloaded around 200 million times on the internet, making her a global celebrity, but she has struggled to cope with the pressures of her sudden fame.
During the run-up to the final Boyle repeatedly broke down in tears, and soon after losing out to dance troupe Diversity she was taken to a private clinic suffering from exhaustion.
Boyle, whose dowdy image and idiosyncratic behavior made her an unlikely star, did perform at the opening tour concert in Birmingham on Friday and again on Saturday in Sheffield.
But on Sunday she dropped out, prompting fresh concerns over her health.
After the tour is finished, Boyle is expected to record an album which will hit stores by Christmas.