When the 21-year-old singer recently spotted Perry watching her performance at the Staples in LA during her on-going Bangerz Tour, the 'Wrecking Ball' hitmaker plunged in for a kiss, reported Ace Showbiz.
Perry, whose hit 'I Kissed a Girl' rose her to fame, willingly accepted the kiss.
The 'Roar' hitmaker later posted a photo of her and Cyrus on Twitter. "I adore you Miley Cyrus," she wrote.
Perry had even requested Cyrus to perform her favourite songs.
"I hope Miley Cyrus sings 'Breakout' or 'The Climb' tonight please!" she wrote on Twitter.