Lady Gaga pulled the plug on a string of gigs over the weekend – just hours after she performed a medley of her hits for a live audience on The Oprah Winfrey Show. The “Love Game” entertainer scrapped a show at Purdue University in Indiana on Thursday after collapsing with an irregular heartbeat as she prepared to take the stage. She later took to her Twitter page to apologize to fans, insisting she was devastated by the cancellation.

Oddly, the singer was back on stage just a day later, performing on Friday’s Oprah. Supporters were set for more heartbreak as Gaga pulled out of a planned gay rights charity gala she was due to host in Atlantic City on Saturday. The star subsequently cancelled her show in Wallingford, Connecticut on Sunday. She also postponed Monday’s concert in Uncasville, Connecticut with plans to announce a rescheduled date.