Did this pop starlet have a secret engagement?

Katy Perry has put the gossip mills into overdrive after accidentally flashing what looked like an engagement ring.

While hiding her face from photographers after a date night with John Mayer, the Prism singer showed everyone the ring sitting comfortably on her wedding finger.

On Feb 15th, Mayer tweeted, “I got the hottest girl in the game Pick in’ my brain,” sparking further speculation that the two had a Valentine’s engagement.

Katy is know for wearing her heart on her sleeve, so hopefully she won’t keep us in the dark for too long!