Lady Gaga Hospitalized Following Last Night's Concert in Denver

Lady Gaga experienced a health scare last night when she was taken to the hospital for altitude sickness, following her concert in the 'Mile High City' of Denver, Colorado.

The ARTPOP singer, who will soon release a brand new duets jazz ablum with Tony Bennett, shared a photo on Instagram of herself wearing an Oxygen mask in the hosptial, along with the caption: "Altitude Sickness is no Joke! #hitThatHospitalSh- #artRaveDenver many true ravers crowd tonight."

The singer plans to move forward with her artRave tour, with a Friday night performance in Seattle, Washington, the last U.S. stop on the schedule. From there she continues on to Canada and Japan.

Source: Instagram