have you heard 'Make Me A Song' by Kiley Dean? it sounds like EXACTLY what you describe:

[Timbaland]
What you hear is not a test
Wha wha wha wha wha

[Kiley Dean]
I'm on a mission
Sun is out
My skin is glistenin'
Got my jeans on
Tank top, chillin'
With my girlfriends
Looking fabulous
My tan is just amazin'
Turn it up
That song is blazin'
(Call Me) [this is an interpolation of 'Call Me' by Tweet!]
I'm headed to LA and
Gotta make sure I ask Timbaland

Can you give me a song like Rock The Boat, Rock The Boat, Rock The Boat
Can you give me a song that you and Missy wrote, Missy wrote, Missy wrote
Somethin' like Get Ur Freak On
Cause Kiley needs something to sing on
Make me something I can get my groove on
Somethin' I can get my groove on

3 o'clock at the studio
Timbaland is playin' Hootnanny kinda low [interpolation of Bubba Sparxxx!]
Felt the love in the room
Soon as I hit the door
Bubba's pacin' around gettin' ready to flow
Tim is in the corner doin' a track
Bobbin' his head
I know he's feelin' that
Take his headphones off
And he looks my way
And he asks me what I wanna do
And I say

Can you give me a song like Rock The Boat, Rock The Boat, Rock The Boat
Can you give me a song that you and Missy wrote, Missy wrote, Missy wrote
Somethin' like Get Ur Freak On
Cause Kiley needs something to sing on
Make me something I can get my groove on
Somethin' I can get my groove on

And then he asked if I liked this [Timbaland beat]
Oh do you like this [Timbaland beat]
But do you like this [Timabland beat]
And then he flipped it
And then we start to move
We're gettin' in the groove
He says it's just for you
And I'm glad I asked

Can you give me a song like Rock The Boat, Rock The Boat, Rock The Boat
Can you give me a song that you and Missy wrote, Missy wrote, Missy wrote
Somethin' like Get Ur Freak On
Cause Kiley needs something to sing on
Make me something I can get my groove on
Somethin' I can get my groove on

[Timbaland]
I think I got somethin' for you
I think I got somethin' for you
I think I got somethin' for you

twist in the tale = Timbaland did not write 'Rock The Boat'!