Ok this is pretty simple if you can play the rythm by ear. This is pretty much my 
first tab so hopefully it's okay.

GI (320003@1)think you're pretty
DA 
Without any make-up on
G (320003@1)                   
I think you're funny
DA
When you tell the punch line wrong
G (320003@1)               
I know you get me
DA                         D (xx0232@1)    AWhen (x02220@1)you let your walls come down, down

GBefore (320003@1)you met me
DA
I was a wreck
     GBut (320003@1)things were kinda heavy
DA
You brought me to life
GNow (320003@1)every February
DA            D (xx0232@1)        AYou'll (x02220@1)be my valentine, valentine

Pre-Chorus:
             G (320003@1)       A (x02220@1)Let's just talk, all through the night
             G (320003@1)     AThere's (x02220@1)no need, to rush
         G (320003@1)          AWe (x02220@1)can dance until we die
        BmYou (x24432@1)and I
         DWe'll (xx0232@1)be young forever

Chorus:
G (320003@1)        AYou (x02220@1)make me
      
Feel like
             G (320003@1)          AI'm (x02220@1)living a Teenage Dream

The way you turn me on
G (320003@1)          AI (x02220@1)can't sleep

Let's runaway
           BmAnd (x24432@1)don't ever look back
     DDon't (xx0232@1)ever look back

G (320003@1)           AMy (x02220@1)heart stops
   
When you look at me
G (320003@1)           AJust (x02220@1)one touch

Now baby I believe
G (320003@1)          AThis (x02220@1)is real

So take a chance
        BmAnd (x24432@1)don't ever look back
      DDon't (xx0232@1)ever look back

Verse 2:
GWhen (320003@1)you're around me
DA
Life's like a movie scene
GI (320003@1)wasn't happy
DA
Until you became my queen
GI (320003@1)finally found you
DA                   GMy (320003@1)missing puzzle piece
DA
I'm complete

Pre-Chorus:
             G (320003@1)       A (x02220@1)Let's just talk, all through the night
             G (320003@1)     AThere's (x02220@1)no need, to rush
         G (320003@1)          AWe (x02220@1)can dance until we die
        BmYou (x24432@1)and I
         DWe'll (xx0232@1)be young forever

Chorus:
G (320003@1)        AYou (x02220@1)make me
      
Feel like
             G (320003@1)          AI'm (x02220@1)living a Teenage Dream

The way you turn me on
G (320003@1)          AI (x02220@1)can't sleep

Let's runaway
           BmAnd (x24432@1)don't ever look back
     DDon't (xx0232@1)ever look back

G (320003@1)           AMy (x02220@1)heart stops
   
When you look at me
G (320003@1)           AJust (x02220@1)one touch

Now baby I believe
G (320003@1)          AThis (x02220@1)is real

So take a chance
     BmAnd (x24432@1)don't ever look back
   DDon't (xx0232@1)ever....

Bridge:
D (xx0232@1)              GI'm (320003@1)'ma get your heart racing
       AIf (x02220@1)that's what you need
         Bm (x24432@1)           DIn (xx0232@1)this teenage dream tonight
                   GLet (320003@1)you rest your head on me
      AIf (x02220@1)that's what you need
         Bm (x24432@1)           DIn (xx0232@1)this teenage dream tonight
               G (320003@1)A (x02220@1)       BmD
(tonight, tonight....tonight)

Chorus:
G (320003@1)        DA
You make me
      
Feel like
             G (320003@1)          DA
I'm living a Teenage Dream

The way you turn me on
G (320003@1)           DA
I can't sleep

Let's runaway
           GAnd (320003@1)don't ever look back
       D (xx0232@1)ADon't (x02220@1)ever look back

G (320003@1)           AMy (x02220@1)heart stops
   
When you look at me
G (320003@1)           AJust (x02220@1)one touch

Now baby I believe
G (320003@1)          AThis (x02220@1)is real

So take a chance
        BmAnd (x24432@1)don't ever look back
       DDon't (xx0232@1)ever....

Bridge:
D (xx0232@1)               GI'm (320003@1)'ma get your heart racing
       AIf (x02220@1)that's what you need
         Bm (x24432@1)           DIn (xx0232@1)this teenage dream tonight
                   GLet (320003@1)you rest your head on me
      AIf (x02220@1)that's what you need
         Bm (x24432@1)           DIn (xx0232@1)this teenage dream tonight
             G(tonight, (320003@1)tonight)....