The Spose song Gee Willikers came up on my Pandora station recently, and it contains a sample that sounds very familiar to me. It sounds like violins or some other stringed instruments; three groups of five notes. I think it's from an early 2000s or late 90s song, but for the life of me I cannot identify which one.
Here's a YouTube video of Gee Willikers, the riff is first heard a bit after the 25 second mark.