Katy Perry has announced that she will release another promotional track off upcoming "Prism" album later this month. The 28-year-old pop singer tweeted that a new track called "Walking on Air" would be available on iTunes on September 30.
"Mark your calendars for the next #PRISMPREVIEW on SEPT 30 when you can hear/have the new song 'WALKING ON AIR...' before the record hits," Perry tweeted. She also reminded fans that the song wasn't a single to follow up her latest hit, "Roar".
"Remember these are NOT singles, just tastes to enjoy! #ROAR is still ROARING & 2nd single from PRISM will not be announced for some time..." she added. "But don't you worry... I promise you'll like it!"
Perry teased "Walking on Air" last month. At that time, she asked fans to choose a song between "Walking on Air" and "Dark Horse" to be released on iTunes before "Prism" officially arrives on October 18. "Dark Horse" won the vote and Perry released the Juicy J-assisted track earlier this week.