The 26-year-old, fell sick and puked on the stage four times but continued her performance. However, she wrote on Twitter that watching the video of YouTube left her in tears, reports contactmusic.com.
"Was praying nobody saw but actually its quite a good laugh if u need one! Check out Lady PukeGA doing Swan 'Vomit' Lake," she wrote.
"I still hit my routine mom!! Thank goodness for the Dorchester... I need some tea, I think I just cried a little watching," she added. The singer has recently launched her fragrance 'Fame' in London.