What's the name of this song?

[John]

All I can remember after hearing it on the radio was the end that said summer, s-s-s-summer, summer, s-s-s-summer quite a bit before it begins to fade out. It is sung by a boy band and they had kind of sounded like New Kids on the Block or Backstreet Boys. My little gorl loved it and I wanted to buy it for her. I know this is not a lot of information, but hopefully someone will know what it might be. Thanks