Stack Exchange network consists of 175 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.
The sample of this video is some classical music but it is currently eluding me.
Xzibit - Paparazzi
I suppose you are referring to Gabriel Fauré's Pavane (Opus 50). Commonly used in commercials, samples, covers... a lot.
The specific female vocalise sampled in Paparazzi is from Barbra Streisand's cover.
Required, but never shown