Could there be an Adam Levine and Katy Perry duet in the making?

Judging by some paparazzi photos, The Voice judge was seen exiting a recording studio soon after the "Part of Me" singer had entered the same building. Pop star Sia and producer Diplo were also spotted during Perry's recoding session, appearing in a photo she posted on Instagram where the pair playfully try to hide the "California Gurls" singer from photographers with umbrellas (seen after the jump).

With no confirmation from either Levine's nor Perry's camp regarding the possible collaboration, we'll just have to wait until the end of the summer when her album is due to be released.