On September 27, 2013, it was announced through Billboard that "Unconditionally" will be the album's second official single. It will be released on October 22, 2013, the same day as the album.[2] The first televised performance of "Unconditionally" will be at the 2013 MTV Europe Music Awards on November 10, 2013.

Katy Perry最新专辑《Teenage Dream》同名二单
You think I'm pretty
Without any make-up on
You think I'm funny
When I tell the puch line wrong
I know you get me
So I'll let my walls come down, down
Before you met me
I was a wreck
But things were kinda heavy
You brought me to life
Now every February
You'll be my valentine, valentine
Let's go all the way tonight
No regrets, just love
We can dance until we die
You and I
We'll be young forever
You make me
Feel like
I'm living a Teenage Dream
The way you turn me on
I can't sleep
Let's runaway
And don't ever look back
Don't ever look back
My heart stops
When you look at me
Just one touch
Now baby I believe
This is real
So take a chance
And don't ever look back
Don't ever look back
We drove to Cali
And got drunk on the beach
Got a motel and
Built a floor out of sheets
I finally found you
My missing puzzle piece
I'm complete
Let's go all the way tonight
No regrets, just love
We can dance until we die
You and I
We'll be young forever
You make me
Feel like
I'm living a Teenage Dream
The way you turn me on
I can't sleep
Let's runaway
And don't ever look back
Don't ever look back
My heart stops
When you look at me
Just one touch
Now baby I believe
This is real
So take a chance
And don't ever look back
Don't ever look back
I might get your heart racing
In my skin-tight jeans
Be your teenage dream tonight
Let you put your hands on me
In my skin-tight jeans
Be your teenage dream tonight
You make me
Feel like
I'm living a Teenage Dream
The way you turn me on
I can't sleep
Let's runaway
And don't ever look back
Don't ever look back
My heart stops
When you look at me
Just one touch
Now baby I believe
This is real
So take a chance
And don't ever look back
Don't ever look back
I might get your heart racing
In my skin-tight jeans
Be your teenage dream tonight
Let you put your hands on me
In my skin-tight jeans
Be your teenage dream tonight ..