In February 2012, Forbes reported on "Spotify's secret weapon": musician D. A. Wallach, member of the band Chester French and former Harvard classmate of Mark Zuckerberg. He acts as Spotify's "artist-in-residence" and helps Spotify "brainstorm artist-friendly applications that can be carved from the gusher of data it collects". One such application includes geographical data of which cities listen to artists' music the most as suitable tour locations. He told Forbes:
