This is sung in "Futago no Pupurin Vs. Purin! Utau Pokémon Konsaato." The singer isn't the greatest... but in this song at least she actually sings pretty good.
[Britney:] Yeah!
Come on!
Sing along with us!
It's a perfect summer day and a perfect time to get away-yeah!
[Back-Up:] Chuu Chuu Pika Pika!
Chuu Chuu Pika Pika!
[Britney:] We'll take our bouncy beach ball down to the beach and play.
[Back-Up:] Chuu Chuu Pika Pika!
Chuu Chuu Pika Pika!
[Britney:] We can play and swim while we sing and bounce along.
[Back-Up:] Chuu Chuu Pika Pika!
Chuu Chuu Pika Pika!
[Britney:] Here with all my friends...
I'm just hoping summer never ends.
[Back-Up:] When we're here with all our friends fun will never end-hey!
When we're here with all our friends fun will never end-hey!!
[Britney:] There's no place in the world that we'd rather stay.
So come with me now on the summer beach ball; get away.
Yay!
Yeah!
All through the winter months we had to hide and stay inside.
Yeah!
Now throw your arms open wide cuz summer's outside.
So all aboard lets ride!