i heard this song today when i was at nike show room

it had a tune like

ah aaaa aaaaa

i will do everything ( or anything don't know what it was) that you want me to ah aaaaa ( the beats goes fast)

you can count on that ah aaaaaaaaaaaaaa (not the exact word but something of that sort)

the song was sung by a lady.

its not barry white or meatloaf.

hope some one know what iam talking about