Katy Perry engaged to John Mayer?

Pop star Katy Perry was spotted wearing a ring on her engagement finger on Valentine's Day, as she stepped out for a meal with John Mayer.

The 'Roar' singer was pictured with partner Mayer on February 14 sporting a ring on the third finger of her left hand, sparking the engagement rumours, reported Huffington Post.

The couple enjoyed a meal at Sunset Towers in Los Angeles on the romantic day before heading to a club to party.

Perry, 29, was previously married to comedian Russell Brand, who she divorced in 2012.