Lady Gaga has been hospitalised following one of her concerts in Colorado.
The singer (28) sought medical treatment after suffering from altitude sickness after the gig, which is part of her ArtRave: The Artpop Ball tour, in Denver this week.
She took to Instagram to share a picture of herself with an oxygen mask on and wrote: “Altitude Sickness is no Joke! #hotThatHosptialS**t #artRaveDenver many true ravers crowd tonight [sic]”.
