Who Sings The Sprain Song An Early 90's Late 80's Kids Move? Whimbby? ?

An Early 90's Late 80's kids move? Whimbby? ? - who sings the sprain song

OK, so I do not remember this movie for the life of me.
begins with his two children, a boy and a girl (brother and sister) dye in a coloring book. and have a dog, a beagle. Children go as a second and a rainbow of houses in the book and get the dog. back and they do. The protagonist girl has very curly hair brunette with pigtails and a dress of black and white stripes. make the invisible children with this stick that looks like a tube of bubbles, but it is the form of a music note, black and rhinestones everywhere blowing around her like shes blowing a bubble and the rainbow-out. Children need help to make all your friends argue about who the best color (eg red, blue, green, purple, etc.) all sing songs as youWN by the bay where the watermelons grow, and there were two in bed and said the little half turn. Finally, the main character ankle sprains, and all their friends go and everyone brings a different color scarf around his ankles and his team to a rainbow.

That's about the entire movie,
Please, its my favorite movie since I was a child, does anyone know?