Applause
ARTPOP
Aura
Brooklyn Nights
Donatella
Do What You Want (With My Body)
G.U.Y. (Girl Under You)
Gypsy
I Wanna Be With You
Jewels & Drugs
MANiCURE
Mary Jane Holland
Princess Die
Sex Dreams
Swine
Temple
^^ these 16 tracks are confirmed for release, whether on the album or the app.
PARTYNAUSEOUS
Ratchet
Red Flame
TEA
^^ these 4 were recorded, but aren't confirmed for release (i hope we get PN, Ratchet, and TEA)
I don't think she would call ARTPOP a collaboration with DJWS, Zedd and Madeon and only to give Madeon one or two songs. My bet is that he's a producer on a couple of songs along with other producers.
Also take note that DJWS is the album producer so he's likely to have credit on all of the songs so we're not sure if he's the only producer on some of the above songs.
Last night I dreamt that there was a Gaga interview where she announced that the album's actual name was ****POP (ARTPOP was just a project title) and Applause was a song about Taylor applauding her during sex, Hair was re-made into a song about Gaga having her hair pulled during sex, and Swine had some really really vulgar lyrics :deadbanana1:
she has mentioned way too many titles I think. I guess we'll find out on Sunday! 
1 and a half month is approximately how early Katy showed the Prism cover so I hope so!
