Finally my personal review:
Katy offers you to see the LIGHT on PRISM!
1. "Roar": The start from the album, I like it 'cause it gives me some Teenage Dream teas so it feels like a transition to a brand new record. One of the most unpected titles on this album, such an anthem, a perfect pop song, not too-over-produced or something gives an incredible simple pop production which sounds just like a classic. It makes you feel good, wonderful lyrics, you just can't stop listening to this and feeling better after every listen. Katy delievers on the track
2. Legendary Lovers: Full of surprises and slayges on the first listen. Such an interesting song, I realise that I'm listening to a new album by the Queen. Most interesting lyrics on the chorus. Many influences on the song, another level, this song is hot as hell

The "auu" part gives me "She Wolf" teas (Shakira). Another song on repeat, slayed and it's just the beginning
3. Birthday: Don't get the love for the song, not my favorite so far, but it's unstoppable to not liking it, her voice in this one

Even with not being my favorite so far, God, I feel I need to be addicted to this song
4. Walking On Air: God, this song has grown on me so much. First time I listened to it was just like: Oh, okay it's a cool song but damn after the second listen I'm speechless, wonderful dance track, repetitive and perfect, freakin' love it, you don't dissapoint. And the good thing with WOA is that it's not just another dance song, it's different, it has these 90s influences that I love and make me wanna dance all night God, it's resistless. My favorite part: TONIIIIIIIIGHT, love her voice there, I live for that. The bridge
5. Unconditionally: Katy reminds us why she is the Queen. The reason I'm loving PRISM, a beautiful human being named Katy Perry offers a touching and emotional track, truly beautiful, no more to say, just wanna cry with this, it brings me a lot of memories when I listen to it, it feels like she knows you

At the end what matters: I WILL LOVE YOU UNCONDITIONALLY. Giving me anthem teas. The last minute is EVERYTHING
6. Dark Horse: A fierce dark urban Katy slays me, a new experiment, a new type of slayge. The production is something you can give a applause. The intro calling "Katy Perry" makes you scream: "THE QUEEN". No words, freakin' hot track and her sexiest song so far on this album. Perfect collabo. "Make me your aphrodite, make me your want and only" kills me
7. This Is How We Do: First time I saw the title just thought about Rita Ora's "How We Do (Party)" and was expecting some dance party pop song. I wasn't THAT wrong, but this is different. Production slays

I feel like this is a song to party and have fun, very good one. The "Last Friday Night (T.G.I.F.)" on PRISM
8. International Smile: The California Gurls on PRISM tbh, the same thing that happened on Teenage Dream, there were similarities between LFN and CG. Now in the case of PRISM: IS and TIHWD. Not the best song on the track, but this one is really cool

The bridge reminds me of Ke$ha's "Thinking Of You"
Starts a more personal part and slower, too.
9. Ghost: A dark track, the lyrics content is very interesting to listen, a vulnerable Katy confronting her divorce, beautiful
10. Love Me: The most simple track so far, likeable but one my least favorites. Good lyrics but I feel I have heard them before in other songs. A more boring version of "Pearl"
11. This Moment: Spiritual song. Nice, another midtempo
12. Double Rainbow: Don't know how to say it and how to describe this one, but I really like it
13. By The Grace Of God: Just like her previous record, she ends with a Greg Wells track which means a beautiful song.
Not gonna comment about the Deluxe Edition Tracks 'cause I'm kind of lazy right now. And impossible for me to give it a rating