Two tracks from Katy Perry's upcoming album, Prism, leaked today. The two songs, "Unconditionally" and "Birthday" follow the television debut of her dance track, "Walking on Air," which she performed on Saturday Night Live last weekend.

"Unconditionally" is a midtempo electro-pop track in which Perry proclaims that she will "love you unconditionally." The beat pulses with reverberating keyboard effects and builds up to the emotional chorus. It's not the best track we've heard off the album, but it works as a conventional pop tune. Listen to the four-minute song here.

According to Rolling Stone, the track is one of four songs produced by Dr. Luke (Kelly Clarkson, Rihanna), Cirkut (Britney Spears, Taylor Swift) and Max Martin. The article mentions that Perry will perform the song at the MTV Europe Music Awards on Nov. 10.

The second song, "Birthday" coincidentally surfaces nine days before Perry's 29th birthday. In the song she sings, "I'll make it like your birthday every day." The sexually suggestive song has hints of R&B elements including horns and driving synth and fits well next to other dance tracks on the album such as "Walking on Air." We wonder if the song is about John Mayer who is celebrating his birthday today. Perry tweeted at her boyfriend earlier today saying, "happy birthday cutie!!! @JohnMayer." Listen to "Birthday" here.

Prism is due out Friday (Oct. 18) via Capitol Records.

Prism Tracklist:

01. Roar
02. Legendary Lovers
03. Birthday
04. Walking on Air
05. Unconditionally
06. Dark Horse [feat. Juicy J]
07. This Is How We Do
08. International Smile
09. Ghost
10. Love Me
11. This Moment
12. Double Rainbow
13. By The Grace of God
14. Spiritual
15. It Takes Two
16. Choose Your Battles

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