DENVER - Lady Gaga apparently had a breathtaking visit to the Mile High City Wednesday, that began with her performing at the Pepsi Center and ended with her being hospitalized with altitude sickness.
The pop star posted a selfie on Instagram of her wearing an oxygen mask at the hospital after the Denver concert, according to People.com.
"Altitude Sickness is no Joke!" she wrote on Instagram."#hitThatHospitalS--t #artRaveDenver many true ravers crowd tonight."
The Denver concert was part of the Grammy winner's "The ARTPOP Ball" world tour, which is scheduled to resume on Friday in Seattle.