The singer, who tops the Billboard Hot 100 this week with 'Last Friday Night', said that she was "proud" of the milestone, which equals Michael Jackson's record of five chart-topping songs from his 1987 album Bad.
Perry tweeted: "What a way to wake up! SO proud to announce that the little-engine-that-could of a song 'LAST FRIDAY NIGHT' is officially #1 & made HISTORY! (sic)
"& u know, I couldn't have done it with out ya, really I owe u guys BIG... so take this moment to give yourself a high FIVE!!!"
The song sat at number two on the chart for four weeks but was helped to the top after a remix featuring Missy Elliot was released last week.
Perry's fifth number one comes after being the first artist in the chart's 53-year history to spend over a year in the Top 10.
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Watch Katy Perry's 'Last Friday Night' music video below: