While some music fans may find themselves comparing the tracks, both artists continue to find plenty of success in their successful careers.
Britney continues her residency at The AXIS at Planet Hollywood Resort & Casino in Las Vegas. While the show is scheduled to end on December 31, her manager teased that the singer's next venue "could be conceivably anywhere."
As for Katy, she just released her latest album titled Witness that features "Chained to the Rhythm" and "Swish Swish."
She also confirmed a spot on the judges panel for the American Idol revival season. The show is expected to return on ABC in 2018.