Hello again! This song is super fun to play! Selena is an amazing artist and this is an
amazing song!
Ok, so there are two ways to play this song: The way I have tabbed it, which is the key
of C with a capo on 6, OR in the key of D with a capo on 4. If you want to play it in D,
click "two half steps UP". This will make all of the chords in the key of D. Then just 
move your capo to 4, and there you go!
Sorry if the lyrics or chords are wrong. I'm not sure if the chords in the Bridge are
correct and I just copied the lyrics off of another website. If you figure out how the
bridge is, tell me in the comments...
Comment, rate, or add me as a friend! (Haha, you don't have to...) :)

Capo on 6 for C
Capo on 4 for D

Verse 1:
    CIts (x32010@1)summer!
     C (x32010@1)                     GThe (320003@1)heat is blazing like the 4th of July
          Am (x02210@1)                 FI (133211@1)got the air come on and its blasting on high
         C (x32010@1)                     GSo (320003@1)just grab something cool and jump in your ride
 Am (x02210@1)                      FPick (133211@1)up everybody I'll be waiting outside

Chorus:
 C (x32010@1) GWoah-oh! (320003@1)     Am (x02210@1)                FThe (133211@1)summer's not hot without you
 C (x32010@1)  GWoah-oh-oh! (320003@1)     Am (x02210@1)                  FThe (133211@1)summer won't start without you
     CThe (x32010@1)temperature is 99
    GAnd (320003@1)It cant get much higher
    AmSo (x02210@1)come on over Romeo
    FAnd (133211@1)vamos a la playa
 C (x32010@1)  GWoah-oh-oh! (320003@1)     AmThe (x02210@1)summer's not hot
     F (133211@1)                  CThe (x32010@1)summer won't start without you

GThe (320003@1)summer's not hot
                 Am (x02210@1)              FThe (133211@1)summer's not hot till you show up
                 CThe (x32010@1)summer's not hot
                 GThe (320003@1)summer's not hot
                 Am (x02210@1)              FThe (133211@1)summer's not hot till you show up

Show up

Verse 2:
    CIt (x32010@1)summer!
C (x32010@1)                         G (320003@1) You're the reason that I jumped in the pool
        Am (x02210@1)                 F'Cause (133211@1)you're so hot that I gotta get cooled off
   C (x32010@1)                     GAnd (320003@1)all your friends will bring 'em along
 Am (x02210@1)                           FHurry (133211@1)up and meet me there's a party going on

Chorus:
 C (x32010@1) GWoah-oh! (320003@1)     Am (x02210@1)                FThe (133211@1)summer's not hot without you
 C (x32010@1)  GWoah-oh-oh! (320003@1)     Am (x02210@1)                  FThe (133211@1)summer won't start without you
     CThe (x32010@1)temperature is 99
    GAnd (320003@1)It cant get much higher
    AmSo (x02210@1)come on over Romeo
    FAnd (133211@1)vamos a la playa
 C (x32010@1)  GWoah-oh-oh! (320003@1)     AmThe (x02210@1)summer's not hot
     F (133211@1)                CThe (x32010@1)summer won't start without you

Bridge:
C (x32010@1) 'Til you show up
G (320003@1) 'Til you show up
Help?
  'Til you show up
  FUntil (133211@1)you show up

C (x32010@1)               GIn (320003@1)my heart it's freezing
      Am (x02210@1)       FI (133211@1)am wearing a bikini
       C (x32010@1)            GAnd (320003@1)I know the sun is beating down
      Am (x02210@1)         FWhere (133211@1)ever you may be

CThe (x32010@1)summer's not hot
                 GThe (320003@1)summer's not hot
                 Am (x02210@1)              FThe (133211@1)summer's not hot till you show up
                 CThe (x32010@1)summer's not hot
                 GThe (320003@1)summer's not hot
                 Am (x02210@1)              FThe (133211@1)summer's not hot till you show up

Chorus:
 C (x32010@1) GWoah-oh! (320003@1)     Am (x02210@1)                FThe (133211@1)summer's not hot without you
 C (x32010@1)  GWoah-oh-oh! (320003@1)     Am (x02210@1)                  FThe (133211@1)summer won't start without you
     CThe (x32010@1)temperature is 99
    GAnd (320003@1)It cant get much higher
    AmSo (x02210@1)come on over Romeo
    FAnd (133211@1)vamos a la playa
 C (x32010@1)  GWoah-oh-oh! (320003@1)     AmThe (x02210@1)summer's not hot
     F (133211@1)                CThe (x32010@1)summer won't start without you

CThe (x32010@1)summer's not hot, too me
         GIt's (320003@1)not hot, too me
    Am (x02210@1)                       FNo (133211@1)matter what the temperature is
                 CThe (x32010@1)summer's not hot, too me
         GIt's (320003@1)not hot, too me
    Am (x02210@1)                       FNo (133211@1)matter what the temperature is

In the song, it just ends on F, but I think it sounds better if you play a C at the end.
Whatever you like!

Comment, Rate, or add me! :)