"Hot n Cold" became her second top three single in dozens of countries
around the world, including the United States where it reached number
three on the Billboard Hot 100, as well as topping the charts in
Germany, Canada, and Denmark. After Perry wrapped up her appearance at
the Warped Tour, she went on tours in Europe.
"That would be silly. It's not of any interest for me to try and outdo myself at every corner. Eventually you just like pop, explode" After taking time off from her professional career following the release of her autobiographical film, she began work on the album in November 2012 and finished in July 2013. Perry reprised her role as Smurfette in The Smurfs 2, which was released in theaters on July 31, 2013.
