Katy Perry finally has her time machine built for her, the device she longed for to have in her possession - and which now awaits her, ready to use.
The Californian Gurl steps inside the spaceship-resembling silvery shining device, to challenge the first one of the past days' film and singing stars she always wanted to measure her skills and strength against.
That first one she has picked is actress and singer Doris Day who is 31 years of age in 1955 - the point of time back to which Katy now travels.
On her arrival, she meets Doris and reminds her of the letter she has sent to her from the future.
Doris confirms she has received Katy's communication, and that she's well prepared for the encounter.
She also tells Katy that her claim to be a better singer had made her laugh.
Katy, unperturbed, suggests to Doris that after a contest she may be less inclined to indulge in hilarity.
So, Doris Day and Katy Perry proceed to outdo each other in a singing contest which, however, is only the preliminary to a wrestling match in which both women will fight like two wildcats, each determined to dominate and humiliate her opponent...
Doris Day: 31 years, 5'7", 61 kg
Katy Perry: 31 years, 5'7", 59 kg
